DELL N121Y Laptop Batteries 14.8V 40WH
DELL N121Y Laptop Batteries
Compatible Part Numbers:
Compatible Model Numbers:
DELL Inspiron 14 Series DELL Inspiron 14R Series
DELL Inspiron 14-3421 Series DELL Inspiron 14-5421 Series DELL Inspiron 14-N3421 Series
DELL Inspiron 14-N5421 Series DELL Inspiron 14R-3421 Series DELL Inspiron 14R-5421 Series
DELL Inspiron 14R-N3421 Series DELL Inspiron 14R-N5421 Series DELL Inspiron 3421 Series
DELL Inspiron 5421 Series DELL Inspiron N3421 Series DELL Inspiron N5421 Series
DELL Inspiron 15 Series DELL Inspiron 15R Series
DELL Inspiron 15-3521 Series DELL Inspiron 15-5521 Series DELL Inspiron 15-N3521 Series
DELL Inspiron 15-N5521 Series DELL Inspiron 15R-3521 Series DELL Inspiron 15R-5521 Series
DELL Inspiron 15R-N3521 Series DELL Inspiron 15R-N5521 Series DELL Inspiron 3521 Series
DELL Inspiron 5521 Series DELL Inspiron N3521 Series DELL Inspiron N5521 Series
DELL Inspiron 17 Series DELL Inspiron 17R Series
DELL Inspiron 17-3721 Series DELL Inspiron 17-5721 Series DELL Inspiron 17-N3721 Series
DELL Inspiron 17-N5721 Series DELL Inspiron 17R-3721 Series DELL Inspiron 17R-5721 Series
DELL Inspiron 17R-N3721 Series DELL Inspiron 17R-N5721 Series DELL Inspiron 3721 Series
DELL Inspiron 5721 Series DELL Inspiron N3721 Series DELL Inspiron N5721 Series
DELL Vostro 2421 Series DELL Vostro 2521 Series
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All our high quality replacement batteries for DELL N121Y come with a 1-year warranty. Warranty is applicable if the buyer has installed the battery properly in the device and has treated the battery correctly.
30-Day Money Back Guarantee
Our goal is to turn customer satisfaction into ‘Complete Customer Satisfaction’. That's why we offer you a 30-day money back guarantee, on top of our warranty and RMA procedure for defects!
Please note: in order to qualify to get your money back, you must first contact us and await instructions before sending back your product.
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How to Maximize Your Laptop’s Battery Life?
- 1. Defrag your computer regularly. This will allow your hard drive to not work as hard which won't drain your battery more.
- 2. Lower the brightnest of your screen. The brighter your screen, the more power being used.
- 3. Try to keep the amount of programs to a minimum. Every program open helps drain the battery a little bit more.
- 4. Cut down on external devices, such as USB devices, like a mouse. Also WiFi will drain your battery so turn it off when you aren't using it to save power.
- 5. Clean the Battery contacts. Every 6 months are so you should take out your battery and clean the contacts that connect to the laptop. You can use a cloth with rubbing alcohol to achieve this.
- 6. If you ever put your computer on standy, you should try to switch to hibernate, as hibernate fully shuts down your computer, but it allows you to quickly resume your work when you turn it back on.
- 7. Go to "Power Options" on your laptop and change it's setting to Max Battery, Super Energy Saver, or one of the other many different forms of it. But it all means the same thing, switch to the setting that is set for saving the most amount of energy.
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