Tag: Battery

Out of battery,go charging?Oh no, your battery won’t accept!

A lithium battery, strictly speaking, is a lithium-metal or lithium alloy anode material, and a non-aqueous electrolyte solution is a disposable battery. The lithium battery we usually refer to is mainly a lithium-ion battery. It is a rechargeable battery that relies on lithium ions to move between the positive and negative electrodes to work. Lithium-ion batteries use an embedded lithium compound as an electrode material. At present, the main positive electrode materials for lithium ion batteries are: LiCoO2, LiMn2O4, LiNiO2 and LiFePO4.
Rechargeable lithium-ion batteries have a wide range of applications, and the batteries we use on various electronic devices are currently lithium-ion batteries. For example, mobile phones, tablets, laptops, and even electric cars.

The reason why it has such a wide range of applications is due to its superior nature. Taken together, it has high energy density, high average output voltage, low self-discharge, no memory effect, wide operating temperature range, excellent cycle performance, fast charge and discharge, high charging efficiency, large output power and long service life. There are quite a few advantages, such as no toxic or hazardous substances.
Lithium-ion polymer batteries are the most commonly used lithium-ion batteries and are very common on a variety of electronic devices. This lithium polymer is an improvement of ordinary lithium ion batteries. It replaces the liquid organic solvent in ordinary lithium ion batteries with colloidal or solid polymer. It has good safety, does not break out, and can shape various shapes. The battery. Therefore, such lithium polycarbon batteries are used in various handheld electronic devices and pure electric vehicles.

Compared with lithium-ion batteries on ordinary handheld electronic devices, lithium-ion batteries on modern pure electric vehicles have the following advantages:

1. The battery capacity is large. The battery capacity of modern pure electric vehicles is generally very large. For example, Tesla’s Model 3 series has the lowest battery capacity of 50 KWH, which is equivalent to 50 kWh. This large battery capacity is achieved by combining a series of lithium-ion batteries in series and in parallel.

2. The charging time is short. Today’s electric cars generally have a fast charge function. Generally, fast charging can be filled with 80% of electricity in half an hour, and the subsequent 20% takes a long time for security reasons. But this is already very convenient. For example, the domestic battery life of pure electric vehicles is generally around 200KM, 80% of the electricity has been able to drive around 160KM, which is enough for short-distance urban commuting.

3. Long battery life. The lithium polymer battery of a mobile phone or a notebook computer generally has a service life of less than 5 years, and the battery capacity will be seriously degraded after more than 5 years, which cannot meet the demand. However, the five years are short for electric vehicles and cannot meet the demand, because the average vehicle usage time will be more than 10 years. Therefore, the batteries of pure electric vehicles are generally improved lithium-ion batteries, and the service life is generally more than 10 years.

Of course, in addition to the above various advantages, lithium ion batteries also have some disadvantages, for example, intolerance to overdischarge. When overdischarged, excessively embedded lithium ions are fixed in the crystal lattice and cannot be released again, resulting in a shortened life, and deep discharge is more likely to damage the battery.

Therefore, using a low battery can damage the lithium ion battery. Therefore, whether it is a mobile phone, a laptop or an electric car, it should not be charged when the battery runs out. Generally speaking, if there are conditions, it should be charged when the battery has about 40%-50% of the battery. .

In addition, lithium-ion batteries are not tolerant of overcharging. When overcharging, the positive electrode of the battery will be deintercalated with too much lithium ions, and overcharging for a long time may cause the lattice to collapse, thereby irreversibly reducing the capacity of the lithium ion battery.

In short, the emergence of lithium-ion battery technology has accelerated the popularity of electronic devices, such as mobile phones and notebook computers. In addition, the commercialization of pure electric vehicles is also inseparable from the development of lithium-ion battery technology. Lithium-ion batteries with large capacity and fast charge and discharge will definitely drive the development of the pure electric vehicle market.

When should I charge my phone?

The rule with Li-ion batteries is to keep them 50 percent or more most of the time. When it drops below 50 percent top it up a little if you can. A little a few times a day seems to be the optimum to aim for.

But don’t charge it all the way to 100 percent . It won’t be fatal to your battery if you do a full recharge – most of us are forced to do this every now and again in emergencies. But constantly doing a full recharge will shorten the battery’s lifespan.

So a good range to aim for when charging a Li-ion battery is from about 40- to 80 percent in one go. Try not to let the battery drop below 20 percent.

What is battery memory effect?

Battery memory effect is about batteries remembering remaining charge if you don’t let them go all the way to zero too often. So a battery frequently charged from 20- to 80

Sounds crazy but that’s sort of true – but only for older nickel-based (NiMH and NiCd) batteries, not the lithium-ion batteries in your modern phone.

Lithium-ion (Li-ion) batteries don’t suffer the memory effect so you almost need to do the opposite: charge them often but not all the way throughout the day, and don’t let them drop to zero.

Should I use fast charging?

​Many Android phones have a feature that allows for fast charging, often referred to as Qualcomm Quick Charge or, in Samsung’s case, Adaptive Fast Charging – there are others.

These phones have special code usually located in a chip known as the Power Management IC (PMIC) that communicates with the charger you are using and requests that it send power at a higher voltage.

The iPhone 6 doesn’t feature fast charging, but its Qualcomm PMIC is smart enough to recognise when you use a higher-amp charger (like the one you get with the iPad), and that’s a good thing because fast charging will heat up that Li-ion battery and cause it increased wear and tear.

For the same reason, you should never leave your phone in a hot car, on the beach or next to the oven. A hot battery will suffer long-term effects on its lifespan. And so will a super-cold one, so don’t leave your device in the freezer or out in the snow.

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In the same battery capacity, why is the laptop battery much larger than the phone?

The physical meaning of battery capacity means – how much charge the battery can hold or release, we usually use Ah (Ah) or mAh (mAh). According to the definition of current: I=Q/t, we can know that Q=It, the unit of current I is mA (milliampere), and t represents time, the unit is h (hour), so our battery capacity unit is mAh.

That is to say, if a battery capacity indicates 1000 mAh, if it is 100 mA when operating, it can theoretically be used for 10 hours. However, from the formula we can see that Q=It does not involve voltage, only the number of coulombs that can be accommodated inside the battery.

mAh does not accurately describe how much work the battery can do, or how much energy it has, because the operating voltages of different types of products are different. So today we have to mention a new unit – Wh, in fact, we are no stranger to this word, there will be a number in Wh next to the mobile phone battery, laptop battery mAh, but everyone usually causes special note.

The work that the battery can do is W=UIt=UQ, that is, when the voltage is *mA, the unit of voltage U*current I is W (Watt), so W in the battery is represented by Wh, which indicates how much work the battery can do. .

Notebook Adapter for Microsoft Surface Pro 10.6inch

For example, the voltage of the 5200mAh battery of the camera battery is 14.4V, W=UQ=14.4V×6600mAh=74.88Wh, and the power can be directly converted into energy, W=U*Q (unit mAh)=14.4V*5200mA* 1h=14.4V*5.2A*3600s=269568J (Joules).

The voltage of the general charging treasure or mobile phone is 3.7V, so the theoretical 5500mAh mobile power supply can theoretically do 3.7*5200=19.24Wh, 3.7v×5.2A×3600s=69264 joules.

Clevo D900CBAT-12 6600mah 14.4V
Wh is the amount proportional to voltage, current, and time. And mAh is only an indicator of battery charge and discharge. The actual battery capacity (or the energy contained) between different devices is comparable to Wh, which means that the battery voltage must be known. Finally, please remember this formula: Wh = mAh / 1000 × voltage.

Apple bows to mounting pressure, offers $29 battery replacements to regain trust

A week after it was first revealed Apple was slowing down older iPhones, ostensibly to stabilize performance, the company has succumbed to mounting pressure and, as an apparent gesture of goodwill, is offering owners of an iPhone 6 and later models a battery replacement for $29 — a limited-time $50 discount.

You are likely familiar with the rumor that Apple throttles older iPhones in an effort to make users resort to buying new devices. Of course, Apple maintains that’s not the case and it offered a statement regarding why iPhones may struggle as they get older.

Apple confirmed it slowed down older iPhones in an effort to better handle the power output that aging batteries can offer. Some users were upset. So much, in fact, that several lawsuits have been filed against the company.

“Defendant breached the implied contracts it made with Plaintiffs and Class Members by purposefully slowing down older iPhone models when new models come out and by failing to properly disclose that at the time the parties entered into an agreement,” reads a lawsuit filed by Wilshire Law Firm on behalf of Stefan Bogdanovich and Dakota Speas. The pair are seeking both California and nationwide class action status for their suit, according to a report from TMZ.

Apple Insider has reported that attorneys on behalf of Keaton Harvey have filed another suit against Apple. The class-action suit alleges that the company’s decision to slow down old iPhones “allowed Apple to conceal the true nature and scope of the battery defect and to avoid expending time, money, and effort on correcting it.”

The suit requests that Apple notify owners about changes to the OS, repair the flaws in the software that led to the throttling, and reimburse those who bought affected iPhones.

In light of the suits, on Thursday, December 28, Apple released an apology for the confusion surrounding battery and performance issues. In its apology, the company stated “we have never — and would never — do anything to intentionally shorten the life of any Apple product, or degrade the user experience to drive customer upgrades. Our goal has always been to create products that our customers love, and making iPhones last as long as possible is an important part of that.”

Apple also promised to release a software update in 2018 that will allow users to better monitor battery performance and health on their devices. Additionally, it stated it will reduce the price of battery replacement on all iPhone 6 phones and later to $29 for the next year.

Recent throttling accusations first appeared a couple of weeks ago, when a Redditor shared Geekbench results take right before and right after the battery in an iPhone 6S was replaced. According to the Redditor, who goes by the name TeckFire, the iPhone performed as much as 20 percent better after the battery replacement.

After the Reddit post, John Poole, who founded Primate Labs, offered a more visualized look at the link between battery health and iPhone performance. Benchmarking tests were performed on iOS 10.2.0 and 10.2.1, and show some pretty serious differences in performance. Apple introduced an update in iOS 10.2.1 aimed at fixing an issue where some iPhone 6S models shut down, thanks to uneven power delivery from older batteries in the phones. That power management feature is what was causing the performance dips on some iPhone models.

According to Apple, there is a good reason for the performance dip.

“Lithium-ion batteries become less capable of supplying peak current demands when in cold conditions, have a low battery charge, or as they age over time, which can result in the device unexpectedly shutting down to protect its electronic components,” Apple said in a statement to TechCrunch.

In other words, when an iPhone’s battery gets older, it becomes less capable of delivering enough power to the processor during a peak of performance, and when that happens it has to spread out the power requests over a few processor cycles. The result of that is a dip in performance.

That’s what is triggered when benchmarks are run — they look like performance peaks and valleys to an operating system, and as such on older batteries the power requests will be spread out. Upgrade to a new battery, and power will be delivered much more effectively.

It’s not all that surprising. As a battery ages, it stops working as well. That has always been the case and likely always will be. That doesn’t mean that the average performance of a device is being affected, nor does it mean that Apple is throttling your phone to make you upgrade. OF course, Apple could have been a little more transparent — a simple notification telling users that their battery is getting old and that they may see a performance dip because of it would go a long way. That lack of notification may be a serious point of contention when and if the new lawsuit ever gains ground.

HP Compaq 8200 DPS-320NB-1 A HP Computer Power Supply 503377
Adapter For Samsung SyncMaster Display Monitor Power SAMSUNG Power Adapters A3514_ESM
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How to protect your phone from low battery?

A survey shows that people feel anxious and nervous when their phones have low battery.This week Banggood offers 4 ways to get rid of Low-battery anxiety.

1.Use the Good-quality charger & charger cable

A good-quality charger & cables not only enable to fast charging but also protect your phone.

2.Solar charging can help you in outdoor

The Solar chargers don’t have built-in batteries, but they are more effective at converting solar energy to power. If you are going to clamp or other outdoor activity, the solar charger might be more suitable for you than the normal power bank for these reasons:1.It’s more portable 2.It can work sustainably as long as there is the sunshine.

3.Car Charger

A car charger is used to keep your phone juiced up when you are on the road.One function Car Charger shares the advantage of safety performance and top-level charging effect, compared to the multi function ones.

Tips for Car Charging：It’s better to start your car before your phone charging.Becuase the huge current at the car starting moment might have an impact on your phone.

4.Power bank

It’s hard to deny that a power bank is an incredible thing that saves us from the nervous and panic of low battery.There’s a massive selection on offer, catering for every need.

There are 2 tips for choosing a nice power bank from our product manager:

1.Check the brand and source of the cell.

2.Be careful to a small-size power bank with a large capacity.

How to Charge and When to Charge?

Explore what conditions are best when charging any battery.
Early batteries were reserved for commercial use only, such as telecommunications, signaling, portable lighting and war activities. Today, batteries have become a steady travel companion of the public at large to reach a friend, they allow working outside the confines of four walls, provide entertainment when time permits and enable personal transportation. Best of all, batteries help in missions when people are in need.
Folks are eager to learn more about this wonderful portable energy device and one of the most common questions asked is, “What can I do to prolong the life of my battery?” Table 1 addresses how to care for your batteries to meet their needs. Because of similarities within the different battery families, the table addresses the needs and wants of only the most common systems by keeping in mind that these desires extend to almost all batteries in use.
Keep a battery at a moderate temperature. As food stays fresher when refrigerated, so also does cool temperature protect the battery by reducing internal corrosion, also known as parasitic reactions on the electrolyte and electrodes.
Avoid deep cycling. Each cycle wears the battery down by a small amount and a partial discharge is better than a full discharge. When possible, only apply a full discharge to calibrate a smart battery and to prevent “memory” on nickel-based batteries. Li-ion is maintenance-free and the battery lasts longest when operating between 30 and 80 percent SoC.
Avoid abuse. Like a machine that wears down quicker under strenuous work, so also is a battery stressed by harsh discharges and rapid charges. Use cells that are optimized for the power and energy requirements as per application and increase that pack size to minimize load-related stresses.
Avoid ultra-fast charge. Charge Li-ion Energy Cells at less than 1C (below rated Ah); Power Cells are more rugged and can be charged and discharged at a higher rate. NiCd is the only battery that can be fast charged up to 70 percent SoC without adverse side-effects.
Store Li-ion at partial charge in a cool place. The worst combination is high voltage and elevated temperature. Store Li-ion at approximately 50 percent SoC.
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How To Take Care of Your Smartphone Battery the Right Way

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.
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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