Category: BATTERY

Batteries need to be cared for properly — they’re a critical part of our mobile devices and battery technology hasn’t advanced as fast as other technologies. Unfortunately, there’s a lot of incorrect information about batteries out there.

Some of the big myths come from old battery technologies and are actively harmful when applied to new battery technologies. For example, nickel-based batteries needed to be fully discharged, while modern lithium batteries shouldn’t be fully discharged.

Perform Shallow Discharges; Avoid Frequent Full Discharges

Old NiMH and NiCd batteries had a “memory effect” and had to be completely discharged from 100% to 0% to keep their capacity. Modern devices use Lithium Ion batteries, which work differently and have no memory effect. In fact, completely discharging a Li-ion battery is bad for it. You should try to perform shallow discharges — discharge the battery to something like 40-70% before recharging it, for example. Try to never let your battery go below 20% except in rare circumstances.

If you were to discharge your battery to 50%, recharge it, and then discharge it to 50% again, that would count as a single “cycle” with modern Li-ion batteries. You don’t need to worry about performing shallow charges.

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There’s only one problem that shallow discharges can cause. Laptops can get a bit confused by shallow discharges and may show you wrong estimates for how long your device’s battery will last. Laptop manufacturers recommend you perform a full discharge about once per month to help calibrate the device’s battery time estimate.

Heat (and Cold) Can Damage Batteries

Heat can reduce a battery’s capacity. This affects all types of devices — even smartphones heat up when performing demanding tasks — but laptops can become hottest of all when under load. The battery is in the laptop, near the electronics that become hot while working heavily — this contributes to battery wear.

If you have a laptop that you use plugged in all of the time and it gets quite hot, removing the battery can increase the battery’s life by limiting the battery’s exposure to the heat of your laptop. This won’t make too much of a difference in normal use, but if you’re using a laptop to play a lot of demanding games and it’s heating up quite a bit, it may be helpful. Of course, this only applies to laptops with removable batteries.

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Your climate is also a concern. If it gets very hot where you live or you store your device somewhere that gets very hot — say, a hot car left in the sun on a summer day — your battery will wear down faster. Keep your devices near room temperature and avoid storing them in very hot places, such as hot cars on summer days.

Extreme cold temperatures can decrease the lifespan of your battery, too. Don’t put a spare battery in the freezer or expose any device with a battery to similarly cold temperatures if you’re in a region with cold temperatures.

Don’t Leave the Battery At 0%

You shouldn’t leave the battery in a fully discharged state for very long. Ideally, the battery wouldn’t discharge all the way to zero very often — but if it does, you should recharge it as soon as possible. You don’t have to race to a power outlet when your smartphone dies, but don’t throw it in your drawer and leave it there for weeks without charging it. If you let the battery discharge completely and leave your device in a closet, the battery may become incapable of holding a charge at all, dying completely.

Store Batteries at 50% Charge

On the other hand, leaving the battery charged fully for an extended period of time could result in a loss of capacity and shorten its life. Ideally, you’d store the battery at 50% charge if you weren’t going to use it for a while. Apple recommends you leave the battery at 50% if you intend on storing the device more than six months. If you’re using it regularly, you shouldn’t need to worry about its state — although you never want to leave a battery at 0% for too long.

Storing the battery while fully discharged could result in the battery dying completely, while storing the battery at full charge could result in the loss of some battery capacity and shorten your battery’s life.

This applies to both batteries in devices and spare batteries you may have lying around — keep them at 50% if you won’t be using them for some time.

Leaving Your Laptop Plugged in All The Time Is Okay, But…

This one appears to be fairly controversial. We’ve previously covered the eternal question of whether it’s okay to leave your laptop plugged in all the time. We concluded that it’s okay and the battery’s temperature is the main thing you need to worry about. Apple disagrees, recommending against leaving its Macbook Air and Macbook Pro notebooks plugged in all the time.

Ultimately, we’re both saying the same thing. It’s fine to leave your laptop plugged in at your desk when you’re using it, as the laptop won’t “overcharge” the battery — it will stop charging when it reaches capacity. However, just as you shouldn’t store your laptop’s battery at full capacity in a closet, you shouldn’t leave your laptop plugged in for months on end with the battery at full capacity. Allow your laptop’s battery to occasionally discharge somewhat before charging it back up — that will keep the electrons flowing and keep the battery from losing capacity.

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Battery University says that “the worst situation is keeping a fully charged battery at elevated temperatures.” If your laptop produces a lot of heat, removing it might be a good idea. If you have a fairly cool laptop that you occasionally let discharge a reasonable amount, leaving it plugged in — even for days on end — shouldn’t be a problem. If your laptop gets extremely hot, you may want to remove the battery, as we mentioned above.

Batteries Will Always Wear Down

Like all other types of batteries, Li-ion batteries will wear down over time, holding less and less charge. Apple says its laptop batteries will reach 80% of their original capacity after “up to” 1000 full discharge cycles. Other manufacturers commonly rate their batteries 300 to 500 cycles.

The batteries can still be used after this point, but they’ll hold less electricity and will power your devices for shorter and shorter periods of time. They’ll continue losing capacity the more you use them. Heat and aging will reduce the battery’s life, too.

Whatever you do, your devices’ batteries will slowly wear down over time. With proper care, you can make them hold a long charge for longer — but there’s no stopping entropy. Hopefully, your device will be due for an upgrade by the time its battery dies.

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So you’re using your laptop and, all of the sudden, it dies. There was no battery warning from Windows—in fact, you recently checked and Windows said you had 30% battery power left. What’s going on?

Even if you treat your laptop’s battery properly, its capacity will decrease over time. Its built-in power meter estimates how much juice available and how much time on battery you have left—but it can sometimes give you incorrect estimates.

This basic technique will work in Windows 10, 8, 7, Vista. Really, it will work for any device with a battery, including older MacBooks. It may not be necessary on some newer devices, however.

Why Calibrating the Battery Is Necessary

If you’re taking proper care of your laptop’s battery, you should be allowing it to discharge somewhat before plugging it back in and topping it off. You shouldn’t be allowing your laptop’s battery to die completely each time you use it, or even get extremely low. Performing regular top-ups will extend your battery’s life.

However, this sort of behavior can confuse the laptop’s battery meter. No matter how well you take care of the battery, its capacity will still decrease as a result of unavoidable factors like typical usage, age, and heat. If the battery isn’t allowed to run from 100% down to 0% occasionally, the battery’s power meter won’t know how much juice is actually in the battery. That means your laptop may think it’s at 30% capacity when it’s really at 1%—and then it shuts down unexpectedly.

Calibrating the battery won’t give you longer battery life, but it will give you more accurate estimates of how much battery power your device has left.

How Often Should You Calibrate the Battery?

Manufacturers that do recommend calibration often calibrating the battery every two to three months. This helps keep your battery readings accurate.

In reality, you likely don’t have to do this that often if you’re not too worried about your laptop’s battery readings being completely precise. However, if you don’t calibrate your battery regularly, you may eventually find your laptop suddenly dying on you when you’re using it—without any prior warnings. When this happens, it’s definitely time to calibrate the battery.

Some modern devices may not require battery calibration at all. For example, Apple recommends battery calibration for older Macs with user-replaceable batteries, but says it’s not required for modern portable Macs with built-in batteries. Check your device manufacturer’s documentation to learn whether battery calibration is necessary on your device or not.

Basic Calibration Instructions

Recalibrating your battery is simple: just let the battery run from 100% capacity straight down to almost dead, and then charging it back to full. The battery’s power meter will see how long the battery actually lasts and get a much more accurate idea of how much capacity the battery has left.

Some laptop manufacturers include utilities that will calibrate the battery for you. These tools will usually just make sure your laptop has a full battery, disable power management settings, and allow the battery to run to empty so the battery’s internal circuitry can get an idea of how long the battery lasts. Check your laptop manufacturer’s website for information on using any utilities they provide.

You should also look at your laptop’s manual or help files. Each manufacturer may recommend a slightly different calibration procedure or tool to ensure your laptop’s battery is properly calibrated. Some manufacturers may even say this isn’t necessary on their hardware (like Apple). However, there’s no harm to performing a calibration, even if the manufacturer says it isn’t necessary. It just takes some of your time. The calibration process essentially runs the battery through a full discharge and recharge cycle.

How to Manually Calibrate a Battery

While it’s a good idea to use any included utilities or just follow instructions specific to your laptop, you can also perform battery calibration without any specialized tools. The basic process is simple:

• Ÿ Charge your laptop’s battery to full—that’s 100%.
• Ÿ Let the battery rest for at least two hours, leaving the computer plugged in. This will ensure that the battery is cool and not still hot from the charging process. You’re free to use your computer normally while it’s plugged in, but be sure it doesn’t get too hot. You want it to cool down.
• Ÿ Go into your computer’s power management settings and set it to automatically hibernate at 5% battery. To find these options, head to Control Panel > Hardware and Sound > Power Options > Change plan settings > Change advanced power settings. Look under the “Battery” category for the “Critical battery action” and “Critical battery level” options. (If you can’t set it to 5%, just set it as low as you can—for example, on one of our PCs, we couldn’t set these options below 7% battery.)
• Ÿ Pull the power plug and leave your laptop running and discharging until it automatically hibernates. You can keep using your computer normally while this happens.

NOTE: If you want to calibrate the battery while you aren’t using the computer, be sure your computer isn’t set to automatically sleep, hibernate, or turn its display off while idle. If your computer automatically enters power-saving mode while you’re away, it will save power and won’t discharge properly. To find these options, head to Control Panel > Hardware and Sound > Power Options > Change plan settings.

• Ÿ Allow your computer to sit for five hours or so after it automatically hibernates or shuts down.
• Ÿ Plug your computer back into the outlet and charge it all the way back up to 100%. You can keep using your computer normally while it charges.
• Ÿ Ensure any power management settings are set to their normal values. For example, you probably want your computer to automatically power off the display and then go to sleep when you’re not using it to save battery power. You can change these settings while the computer charges.

Your laptop should now be reporting a more accurate amount of battery life, sparing you any surprise shutdowns and giving you a better idea of how much battery power you have at any given time.

The key to calibration is allowing the battery to run from 100% to almost empty, then charging it all the way up to 100% again, which may not happen in normal use. Once you’ve gone through this full charge cycle, the battery will know how much juice it has and report more accurate readings.

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Your smartphone is a minor miracle, a pocket-sized computer that can fulfill almost every whim. But none of its superpowers matter a bit if it runs out of juice. With removable batteries becoming more and more rare, you’ve got to take good care of the one you got. Fortunately, it’s not to hard keep the lithium-ion powering your everything-machine happy if you follow a few simple rules.

Outstream Video

Obviously, the first rule for extending your battery life is not using up all your battery life playing Candy Crush and walking around with Wi-Fi and GPS enabled when you’re not using either and really, really need your phone to last that extra hour. But aside from that, there are some basic rules for care and charging, and they’re the simplest baseline for a healthy battery.

Top it off

You may vaguely recall hearing something about rechargeable batteries and the “memory effect.” You know, that if you don’t “teach” your rechargeable batteries their full potential by taking them from totally full to totally empty, they’ll “forget” part of their capacity. Well forget all that. Right now. It does not apply to your phone.

Battery memory is a real thing, but it applies to nickel-based batteries; your trusty sidekick (literal Sidekick or otherwise) doubtlessly has a lithium-ion battery, and it needs to be treated a little differently. Specifically, it should be topped off whenever you get the chance.

To get the most out of a lithium-ion battery, you should try to keep it north of 50 percent as much as possible. For the most part, going from all the way full to all the way empty won’t help; in fact, it’ll do a little damage if you do it too often. That said, it’s smart to do one full discharge about once a month for “calibration,” but don’t do it all the time. Running the whole gamut on a regular basis won’t make your battery explode or anything, but it will shorten its lifespan.

But! You don’t want to have battery charging constantly either; lithium-ion batteries can get overheated. Luckily for you, your charger is smart enough to help with this, and will cut your phone off for a spell once it’s full. And to complicate matters a even further, your battery doesn’t particularly like being all the way full either. In fact, your battery will behave the best if you take it off the charge before it hits 100 percent, and leaving it plugged when it’s already full is going to cause a little degradation.

So if you’re really particular about optimizing your battery’s life, you should try to go from around 40 percent to around 80 percent in one go, and then back down whenever possible. A bunch of tiny charges throughout the day is your second best bet, and going from zero to 100 and then 100 to zero on a regular basis will put the most strain on your lithium-ion battery.

Keep it cool

It’s easy to worry about bad charging habits thanks to the training we’ve had from old rechargeable batteries, but lithium-ion batteries have a worse enemy than sub-optimal charging: Heat. Your smartphone’s battery will degrade much, much faster when it’s hot, regardless of whether it’s being used or just sitting around doing nothing.

At an average temperature of 32 degrees fahrenheit, a lithium-ion battery will lose six percent of its maximum capacity per year. At 77 degrees, that number jumps to 20 percent, and at 104 degrees it’s a whopping 35. Sure, it’s not exactly practical (or sane) to keep your phone in the fridge, but it’s worth going out of your way to prevent long stays in hot cars and the like.

Avoid wireless charging

Wireless charging can be incredibly convenient if your phone can do it, but it’s not without its disadvantages. The inductive, wireless chargers out there today have this nasty habit of generating a fair bit of waste heat. And while wasted energy is just a bummer in general, that heat will also toast your battery in the process. That’s no bueno. It’s a little less convenient, but standard plug-in charging is going to keep your battery in better shape, especially if you’re some place warm to begin with.

Never go to zero

If you’re going to be shelving any lithium-ion battery for a long time, try to leave it with at least 40 percent battery power to tide it over. Lithium-ion batteries don’t hemorrhage power when their not in use, but they’ll lose maybe five to ten percent of their charge each month.

And when lithium-ion batteries get too low—like, literally zero percent—they get seriously unstable, and dangerous to charge. To prevent explosion-type disasters when you go to charge one that’s been sitting around for a month or two, lithium-ion batteries have built-in self-destruct circuits that will disable (read: destroy) the battery for good, if it reaches rock bottom. And sure, that’ll save you from a face full of battery-acid, but it’ll also leave you short one battery.

Only charge fast when you need to

A lot of newer phones support some sort of “fast charging” feature. These suckers will let you juice your phone up from zero to around half-full in just about a half hour. It’s a life-saver for when you’ve only got a few minutes to spare, but it’s also not great for you battery. Surprise!

Lithium-ion batteries live their longest lives when charged and discharged at low, consistent speeds. Fast charging is not that. But since fast charging is only for the beginning of a charge cycle—and phones and their chargers are smart enough to only apply the extra voltage when it’s useful—the damage isn’t too bad. Still, if you’re not in a hurry, it’s probably better for your battery to apply a slow and steady charge through a low-voltage charger.

Don’t sweat it too much

It’s easy to get protective of your battery, but it’s also easy to get lazy. And that’s fine, because as long as you’re not a complete idiot, you’ll be OK. Typically, a lithium-ion battery lasts for three to five years, and chances are you’re going to want to swap out your gadgets sometime in that window anyway. The slight damage of a technically bad idea—like leaving your phone plugged in all night every night, or using fast charging when you need it—is worth the convenience.

Still, it’s pretty easy to keep your battery reasonably healthy just by avoiding particularly egregious torture like letting your phone discharge from full to zero every single day, or leaving it in a hot car all the time. And the next time you make it back home with power to spare, you’ll thank yourself for it.

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You have seen the claims that a laptop or tablet will run six, eight and even more than twelve hours on a single charge. These sound like spectacular feats that would actually allow one to use a device for an entire transoceanic flight. The problem is that most of these devices would not be able to run for that long. How can manufacturers make such claims about their laptops or tablets even though users are unable to achieve such results?

Battery Capacity and Power Consumption

There are two things that will be the basis for determining how long a laptop or tablet should run on batteries. Of course, the overall capacity of the battery is the easiest to determine and understand. All batteries can store a fixed amount of energy in them. This is generally listed as either mAh (milliamp hours) or Whr (watt hours). The higher the number that a battery is rated at, the more energy that is stored in the battery.

Why is the battery capacity important? If two devices that use the same amount of power, the one with a higher mAh or Whr rated battery will last longer. This makes comparison easy for the batteries themselves. The problem is that no two configurations will draw the same amount of power.

The power consumption of a laptop or tablet depends upon all of the components inside of it. So, a system with a processor that consumes less power will generally last longer if all parts are equal but they almost never are.

It gets even more complicated because the power consumption can also vary depending upon how the device is being used. Certain tasks on devices tend to use up more power. For instance, a brighter screen or a more intensive application will often cause the device to pull more power from the battery thus shortening the running time.

It used to be that the size of the device could easily let you know how much power and how long of a running time it might produce. This has changed as the processing capabilities of today’s processors has gotten much more powerful than the applications most people use them for. More and more companies are moving to more energy efficient processors that provide enough performance for our applications while also providing longer running times.

Manufacturer Claims

Now that the basics are out of the way, how can a manufacturer come up with a claim of something like ten hours of running time for a laptop yet a user in real world use may get only half as much time? It all has to do with how the manufacturers conduct their battery life tests. The most common of these is a function of the MobileMark for laptops and TabletMark for tablets benchmarking suites from BapCo. They simulate computer usage through application use and web browsing to best approximate how people use their laptop or tablet.

Now, in theory, this is a good plan to trying and simulate general usage. The problem is that no person uses their device in the same manner and the test results they provide generally don’t match to real world usage.

The test generally has the CPU idle during much of the test on the basis that many people are either idle or their applications are awaiting user input. It also does not set various power settings within the OS and device. Manufacturers often use various tricks such as decreasing the display brightness to the lowest levels and turning all of the battery saving features to their maximum so they can get the highest run times possible even if it means less than desirable real world use for consumers.

If you happen to use your laptop or tablet to just browse the web and check email, the results may match up very well with manufacturer claims.

The problem is that most of us are not using it the same way the tests are designed for. For instance, we often have the brightness much higher than the minimum. This is especially true for mobile devices used outdoors where they have to be set near maximum just to be visible. Also, many people use their devices for playing games or watching media which produces a more consistent and higher power draw than the benchmark tests.

How To Test for Battery Life

Do not use any benchmarking application when testing for battery life or the various tricks that the manufacturers may use to get their various numbers for advertising. Instead, use a video playback test on all laptops and tablets using the default power profiles and software settings that they ship with. This video playback is then looped and timed until the device goes into an automatic shutdown for low battery by the operating system.

For instance, on long airplane flights, many people use their devices as media players to keep themselves entertained. Many people also tend to binge watch the streaming video through services like Netflix. The best part though is that this is a test that can be done on any device, laptop or tablet making for a good test between different operating systems like Mac OS X or Windows as well as Android or iOS.

What Consumers Should Do With Battery Life Numbers

Any consumer who is presented by a battery life number while researching a product needs to be wary. Some manufacturers are better than others at disclosing how they achieve their results. For instance, they may say that they used the MobileMark testing suite with the brightness set to something like 150 nits (often less than 50 percent brightness levels). Such a claim will often let you know that the time might be inflated compared to another than states it achieved their results in a video playback loop at 75% brightness levels. If there is no disclaimer on how the running time was achieved, assume that they used the automated testing suites with the most advantageous power settings on the device.

Once you have determined how the running time estimates for the laptop or tablet have been generating, you can estimate the approximate running time you may get based upon how you will use the device. There are generally three classes of users that people fall into:

• Light users primarily use their devices for browsing the web and office software. Light Usage: Claimed Time x .85
• Medium users tend to use their devices for streaming video for long stretches of time. Medium Usage: Claimed Time x .75
• Heavy users are ones that like to play games or do tasks like desktop video editing. Heavy Usage: Claimed Time x .50

These formulas are just an estimate and one based upon the most advantageous and generous times for a manufacturer. If for instance the estimate is based on a video playback look, a light user might actually see longer running times while a medium user may have equal and the heavy user still sees less.

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The camera battery has evolved and it is not as simple as picking up a pack of AAs at the drug store anymore. Many cameras use very specific batteries that can only be found at camera or computer stores.

The battery is the power source for your digital camera and it is essential that you use the correct battery in order for your camera to work correctly when you need it to. Remember, without a good battery, you cannot take a picture!

Proprietary vs. Common Batteries

The majority of cameras now require a certain style of battery for a particular camera. Battery styles vary by both manufacturer and camera model. It is very important to purchase the battery made specifically for your camera model!

Do a search for ‘Nikon battery’ or ‘Canon battery’ and you will find many different shapes of batteries even within that particular manufacturer. Some are for point and shoot cameras while others are for DSLR cameras.

The nice thing is that most (not all!) DSLR cameras by one manufacturer use the same style of battery. This is convenient when upgrading bodies because you can (again, in most cases) use the same batteries in your new camera that you did in the old camera.

On the other side, there are a few cameras that continue to use common battery sizes such as AAA or AA. This is found most often in point and shoot cameras.

Some DSLR cameras can be fitted with a vertical grip accessory that holds two of the brand’s proprietary batteries and this could also be adapted to fit the common battery sizes.

Check your camera body’s accessory list to see if this is possible.

Types of Batteries

Disposable

For cameras that use AA or AAA batteries, disposables should only be used in an emergency when no charger is available. They are too expensive to use every day.

Try carrying disposable lithium AAs for emergencies.

They are more expensive, but they hold three times the charge and weigh about half as much as standard alkaline AA batteries.

Common Rechargeable AAs and AAAs (NiCd and NiMH)

Nickel Metal Hydride (NiMH) batteries are more efficient than the older Nickel Cadmium (NiCd) batteries.

NiMH batteries are more than twice as powerful, and they also have no “memory effect,” which is the effect that builds up if you re-charge a NiCd battery before it’s fully discharged. The memory effect essentially reduces the maximum capacity of future charges, and the memory effect becomes worse if repeated.

Rechargeable Lithium-Ion (Li-Ion)

These are the most commonly used style of battery in digital cameras, particularly in DSLRs. They are lighter, more powerful, and more compact than NiMH batteries, but they do cost more.

Li-ion batteries come in brand-specific formats, although a few cameras accept disposable lithium batteries (such as CR2s) via an adapter.

Brand Name vs. Generic Batteries

Today’s camera manufacturers are also in the battery business. They produce their proprietary batteries under their name so consumers get a battery they can (hopefully) trust. Canon and Nikon both produce batteries for every camera they sell and many other camera manufacturers do as well.

As is often the case, generic brands do exist in the digital camera market. They are the exact size and shape of the brand name batteries and will often have the same output of power. They are also considerably cheaper.

While all generic batteries are not bad, caution should be taken when buying one. Read reviews!

The problem may not be seen immediately with generic batteries, but it may appear in the future. One of the most common issues is the battery’s ability to hold a good charge in a year or two. Granted, it is not unheard of for any rechargeable battery to go weak, but it often seems that generics go weaker more quickly than the brand names.

The point is that you should do your research. Consider whether the money saved on a generic battery today is worth the potential problems and quicker replacement that may be required.

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With each iPad release, one constant remain.  The iPad is becoming faster and faster and the graphics get better every year, but the device still maintains an amazing 10 hours of battery life. But for those of us that use our iPad throughout the day, it’s still easy for it to run low.  And there’s nothing worse than trying to stream video from Netflix only to have that low battery message pop up and interrupt your show.

Luckily, there are a few tips you can use to save iPad battery life and keep that from happening as often.

Here’s How You Can Get the Most Out of Your iPad’s Battery:

1.Adjust the brightness.

The iPad has an auto-brightness feature which helps tune the iPad based on the light quality in the room, but this feature is not enough.  Adjusting the overall brightness may be the best single thing you can do to eek out a little more from your battery.  You can adjust the brightness by opening the iPad’s settings, choosing Display & Brightness from the left-side menu and moving the brightness slider.  The goal is to get it where it is still comfortable enough to read, but not quite as bright as the default setting.

2.Turn off Bluetooth.

Many of us don’t have any Bluetooth devices connected to the iPad, so all the Bluetooth service is doing for us is waste the iPad’s battery life. If you don’t have any Bluetooth devices, make sure Bluetooth is turned off.  A quick way to flip the switch for Bluetooth is to open the iPad Control Panel by swiping up from the very bottom edge of the display.

3.Turn off Location Services.

While even the Wi-Fi-only model of the iPad does a great job of determining its location, most of us don’t use the location services on our iPad as much as we use them on our iPhone. Turning GPS is a quick and easy way to save a little battery power while not giving up any features. And remember, if you do need GPS, you can always turn it back on.  You can turn off locations services in the iPad’s settings under Privacy.

4.Turn off Push Notification.

While Push Notification is an excellent feature, it does drain a little bit of battery life as the device checks to see if it needs to push a message to the screen. If you are looking to do the most to optimize your battery life, you can turn Push Notification off completely. Alternatively, you can turn it off for individual apps, decreasing the number of push notifications you receive.  You can turn off Push Notification in settings under “Notifications”.

5.Fetch Mail Less Often.

By default, the iPad will check for new mail every 15 minutes. Pushing this back to 30 minutes or an hour can help your battery last longer. Simply go into settings, choose the Mail settings and tap the “Fetch New Data” option. This page will let you set how often your iPad fetches mail. There’s even an option to only check for mail manually.

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6.Turn off 4G.

Most of the time, we use the iPad at home, which means using it via our Wi-Fi connection. Some of us use it at home almost exclusively. If you often find yourself low on battery power, a good tip is to turn off your 4G data connection. This will keep it from draining any power when you aren’t using it.

7.Turn off Background App Refresh.

Introduced in iOS 7, background app refresh keeps your apps updated by refreshing them while the iPad is idle or while you are in another app.  This can drain some extra battery life, so if you don’t mind whether or not the iPad refreshes your Facebook newsfeed and has it waiting for you, go into Settings, choose General Settings and scroll down until you find “Background App Refresh”.  You can choose to turn off the service as a whole or simply turn off individual apps you don’t care as much about.

8.Find out what apps are eating up all of your battery life.

Did you know you can check your iPad’s battery usage?  This is a great way to find out what apps you are using a lot and which apps may be eating up more than their fair share of your battery.  You can check usage in the iPad’s settings by selecting Battery from the left-side menu.

9.Keep Up With iPad Updates.

It is always important to keep iOS updated with the latest patches from Apple. Not only can this help optimize battery life on the iPad, it also makes sure you are getting the latest security fixes and patching any bugs that have popped up, which will help the iPad run smoother.

10.Reduce Motion.

This is a trick that will save a little battery life and make the iPad seem a little more responsive.  The iPad’s interface includes a number of animations like windows zooming in and zooming out and the parallax effect on icons that make them seem to hover over the background image.  You can turn off these interface effects by going to settings, tapping General settings, tapping Accessibility and touching Reduce Motion to find the switch.

11.Buy a Smart Case.

The Smart Case can save battery life by putting the iPad into suspend mode when you close the flap.   It may not seem like much, but if you aren’t in the habit of hitting the Sleep/Wake button every time you are finished using the iPad, it can help give you an extra five, ten or even fifteen minutes at the end of the day.

Does the iPad Have a Low Power Mode?

Apple recently released a neat new feature for iPhones called “Low Power Mode”.  This feature alerts you at 20% and again at 10% power that you are running low on battery life and offers to put the phone in a Low Power Mode.  This mode turns off a number of features, including features that couldn’t ordinarily be turned off such as special graphics used in the user interface.   It’s a great way to get the most juice out of the dregs of the battery, but unfortunately, the feature doesn’t exist on the iPad.

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You might only use your laptop when it’s plugged in, or only remove it from the wall in rare occasions. Or, maybe you’re one to usually use it in portable mode, away from the wall. In either circumstance, is it better to remove the battery when it’s plugged in?

It might make sense to remove the battery to increase its overall life. However, it seems a bit odd to remove the battery each time you plug your laptop in.

Should you still do it?

The short answer is yes… and no. For the best battery life, you might consider removing the battery from your laptop, but only in certain scenarios.

When to Remove the Laptop Battery

Deciding when to remove the laptop from your battery is mostly determined by convenience.

One easy way to consider whether or not to remove your battery laptop when it’s being powered through the wall is to estimate how long you’ll have it plugged in. If you plan to use your laptop for six hours on a desk, plugged in, and then quit using it again until tomorrow, you might remove the battery.

However, if you’re mobile and are only planning to stay plugged in for an hour or so before you’ll need the battery again, it would make more sense to keep your laptop charged through the wall even with the battery attached. This is because shutting down the whole laptop, removing the battery, and then booting back up only to power down again, and reattach the battery shortly after (and then turn on the laptop again), is a waste of time.

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Another reason to remove the battery from your laptop is if you won’t be using it again for a while, whether attached to the wall or not. Sometimes, a laptop is only necessary for when you work away from home or want to play on your laptop when the weather is nice. If you won’t be using it for the next couple weeks, go ahead and remove the battery.

Something else to think about is whether the power in your building is reliable. If the electricity often disconnects or there’s a storm outside that could switch the power off at any moment, you should keep the laptop battery attached so that an interrupt won’t disrupt your work. That, or invest in a UPS, which is handy even for always-powered-on desktops.

Why Removing the Laptop Battery Can Be Beneficial

Laptop overheating is one of the worst things for all of the laptop’s hardware parts, including the battery, which can age much quicker when fully charged and hot for long periods of time.

Anyone with a laptop has surely experiencing a hot lap or near-burned skin from touching certain areas around the battery in times like these. While putting something like a pillow between you and laptop can help remove the heat from your skin, it’s not going to protect the battery from overheating.

Also, while some high-powered tasks like gaming and multimedia editing can drive up the amount of heat your laptop produces, and therefore abstaining can help reduce that heat, it’s still recommended to remove the battery if you won’t be needing it for extended periods of time.

How to Remove a Laptop Battery

You should always follow these steps in this order when removing the battery from a laptop:

• Shut down the laptop.
• Remove the power cable from the wall.
• Remove the battery.
• Reattach the power cable to the wall.
• Power on the laptop.

How to Store Your Laptop Battery

The most common recommendation for laptop battery storage is to have it charged to about 40% (or somewhere between 30% and 50%) and then keep it in a dry place.

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Some manufacturers recommend a storage temperature of 68 and 77 degrees Fahrenheit (20 to 25 degrees Celsius), which isn’t too cold or too hot.

Some people actually keep batteries in the fridge, but you have to take care that the battery isn’t exposed to humidity and that you warm it up to room temperature before using it, which could be more hassle than it’s worth.

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It isn’t possible to overcharge a laptop battery. Leaving your computer plugged in after it is fully charged doesn’t overcharge or damage the battery. However, it is possible to take steps to optimize the battery life of your laptop.

Lithium-Ion Batteries

Most modern laptops use Lithium-ion batteries. These batteries can be charged hundreds of times without affecting the battery life. They have an internal circuit that stops the charging process when the battery is fully charged.

The circuit is necessary because without it the Li-ion battery could overheat and possibly burn as it charges. A Lithium-ion battery shouldn’t get warm while it is in the charger. If it does, remove it. The battery may be defective.

Nickel-Cadmium and Nickel Metal Hydride Batteries

Older laptops use Nickel-cadmium and Nickel metal hydride batteries. These batteries require more maintenance than Lithium-ion batteries. NiCad and NiMH batteries must be fully discharged and then fully recharged once a month for optimal battery life. Leaving them plugged in after they are fully charged doesn’t affect the battery life appreciably.

Mac Notebook Batteries

Apple’s MacBook, MacBook Air, and MacBook Pro come with non-replaceable lithium polymer batteries to provide maximum battery life in a compact space. To check the health of the battery, hold down the Option key while you click the battery icon in the menu bar.

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You’ll see one of the following status messages:

• Ÿ Normal
• Ÿ Replace Soon – The battery is functioning normally but holds less charge than it did when it was new.
• Ÿ Replace Now – The battery is functioning normally but holds significantly less charge than it did when it was new. You can still use your computer, but if its performance is affected, take it to an Apple authorized service technician to replace the battery.
• Ÿ Service Battery: The battery isn’t functioning normally. You can use the Mac when it’s connected to a power adapter, but you should take it to an Apple Store or Apple-authorized service provider as soon as possible.

Saving Battery Life in Windows 10

• Ÿ The new Windows 10 Battery Saver kicks in automatically when the battery reaches 20 percent of battery life. Depending on your settings, the computer will lower the screen brightness at this time to preserve battery life. To find it, select System from the Settings and then Battery Saver.
• Ÿ You can make changes to the Power Plan screen to preserve battery life. This is the screen where you set the number of minutes of inactivity that elapse before the laptop dims or powers down. Lower numbers reduce battery use. The Power Plan screen is located at Settings > System > Power & Sleep.
• Ÿ If you don’t need the internet for a while, you can turn off Wi-Fi and Bluetooth connections to save battery power. The easiest way to do this is to activate the Airplane Mode, located at Settings > Network & internet > Airplane Mode (or Flight mode).
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Tips for Maximizing Battery Life

• Ÿ Charge a new laptop computer for at least 24 hours before using it.
• Ÿ Lithium-ion batteries last the longest if they stay between 20 and 80 percent charged.
• Ÿ Remove the battery if you use the laptop plugged into the wall most of the time.
• Ÿ If you won’t be using the laptop for a month or more, remove the battery. If you don’t have a removable battery, run the charge down to 50 percent before storage.
• Ÿ The battery will drain in storage. If it sits uncharged for long, it can be damaged. Occasionally charge the battery during lengthy storage times.
• Ÿ Avoid extremely hot or cold temperatures. Don’t leave your laptop in the car on a summer day or during a winter blizzard.
• Ÿ Adjust the keyboard lighting, sleep settings, and screen brightness downward for better battery life.

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Laptop batteries are expensive pieces of equipment, so if you have an old laptop that still works fine, who wants to shell out upwards of $100 to replace the battery right!? Luckily, there are a lot of ways, some technical, some interesting and some strange ones, that people have come up with to restore dying batteries on laptops.

In this article, I’m going to try to list out all the different ones I’ve read about and if I can remember where I read it, I’ll link back to the original source. If you have tried to restore a laptop battery yourself, let us know your method in the comments.

Method 1 – The Freezing Method

I once saw a movie where a guys’ phone was about to die, so he took out the battery and stuck in some snow, which apparently made it last longer! I still don’t know if that’s true or not, but apparently you can freeze a laptop battery and get more juice out of it. Here’s the procedure very succinctly:

Step 1: Take your battery out and place it in a sealed Ziploc or plastic bag.

Step 2: Go ahead and put the bag into your freezer and leave it there for about 12 hours. Some people suggest leaving it for longer, but I wouldn’t leave it for more than 24 hours.

Step 3: Once you take it out, remove the plastic bag and let the battery warm up until it reaches room temperature. Be sure to wrap it in a towel and wipe away any condensation as it warms up.

Step 4: Reinsert the laptop battery and charge it completely.

Step 5: Once charged, unplug the power and let the battery drain all the way down.

Now repeat steps 4 and 5 at least 4 times: charge all the way to full, then discharge completely. That should be it! Unless your battery is leaking acid, you should get some kind of bump in the battery life.

Note that you should only perform this on NiCD or NiMH batteries. If you try this on a lithium battery, it’ll make the battery life worse. Unfortunately, there is no way to restore a lithium battery. You’ll have to find your laptop specs to see what kind of battery you have. For lithium ion batteries, you can’t restore, but you can possibly extend the life of a battery. Read method 2.

Method 2 – Cool Your Computer

If you have a lithium ion based battery, you can increase it’s life by making sure your laptop is cool. If you have a laptop that gets really hot, it can damage the battery and cause the shortness in battery life. I have an old Sony VAIO laptop and I saw a significant increase in laptop battery life when I bought a laptop cooling pad off Amazon. You can get one like this for $20.

You may think your battery is on it’s last leg, but it could simply be that it’s getting too warm and therefore loses charge faster.

Method 3 – Recalibrate Your Battery

With most newer batteries, this is no longer necessary, but if your battery is dying, then it’s probably a pretty old battery. In that case, you may benefit from a recalibration. Recalibrating a battery is done because sometimes the operating system cannot figure out how much capacity is left in the battery. This can happen if the laptop is always plugged in or if the battery was never let to die all the way.

You can tell whether your battery needs calibration if your battery never charges to 100% (say only to 95%) or if the OS says you have 35 min of battery remaining, but the computer dies either much sooner or much later. A lot of manufacturers have released calibration tools for specific laptop models, so first perform a Google search with your computer model + battery calibration.

If you have to manually recalibrate a battery, the procedure is pretty straight-forward:

Step 1: Charge your battery to 100% or to whatever max percentage it can reach and leave it there for about 2 hours to cool down.

Step 2: Now disconnect the power and let the battery drain. There seems to be two views about how to do this. You can either let the battery run down all the way until the laptop dies or you can set it so that it goes to sleep or hibernates around 3 to 5%. Either way, you want to make sure the display stays on until it either dies or goes to sleep.

Step 3: Let the computer remain turned off for anywhere between 3 to 5 hours.

Step 4: Turn it back on and let it charge all the way to 100%.

That’s pretty much it. Now the computer should be giving you a more accurate reading of the actual capacity of the battery.

Method 4 – Remove Battery When Plugged In

If you have a laptop with a removable battery, you can try to remove the battery during the times you have it plugged into the wall. You may have to test this because some laptops don’t work properly with the battery removed. However, if the laptop is running fine and it’s connected to a power source all the time, it may help to simply remove the battery.

The chemical reactions will continue to occur in the battery regardless of whether or not it’s in the laptop, but it could increase the life of the battery. Since the battery is cool and not hot when plugged in, you’ll get more life out of your battery.

Of course, you’ll need to make sure you’re not living in an area where the power goes out because your computer will die immediately and you’ll lose any data. This method is also time-consuming and annoying and something most people won’t do. The last method below may be the best.

Method 5 – Unplug at Full Battery

The last option you can try is to let the battery charge to 100% and then simply unplug the computer. When it gets close to dying, i.e. less than 5%, go ahead and plug it in and let it charge up. However, this could reduce battery life on newer lithium ion batteries, so for those batteries it’s suggested you only let the battery level drop to 35% to 45% and then charge it back up to 75% to 85%. Sounds crazy, but apparently that will give you the best battery life because it won’t use up as many charge and recharge cycles.

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