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LeFix,the Leading Supplier of CMOS Batteries on Amazon
The CMOS battery Powers the BIOS Firmware in Your Laptop
How do I know My CMOS Battery Failed?
Here are the CMOS battery failure symptoms:
- The laptop has difficult booting up
- There’s a constant beeping noise from the motherboard
- The date and time have reset
- Peripherals aren’t responsive or they don’t respond correctly
- Hardware drivers have disappeared
- You can’t connect to the internet
When your CMOS battery fails, your BIOS firmware will shut down and revert to its default settings.
The Specifications of CMOS Battery
How to Choose the Correct CMOS Battery Replacement for Your Laptop
The customers are confused with the variety of CMOS batteries.Here are the key points to determine the correct CMOS battery for your laptop.
- Battery Size:ML1220(Rechargeable)
- Diameter of coin cell battery:12mm
- Thickness of coin cell battery:2.0mm
- Connector Pin:2
- Connector Quantity:2
- Negative Position:Right(On the Metal Terminal Side)
- Positive Position:Left(On the Metal Terminal Side)
Note:Some customers ignore the negative and positive end of battery and complain the battery is "dead" or"defective". Please check the positive and negative position if your new CMOS battery can't work.
We Focus On the Quality and Details When Designing and Manufacturing
Rechargeable Coin Cell Battery
Nominal Voltage (V): 3
Nominal Capacity(mAh): 17
Recommended Drain
Standard (mA) 0.03
Dimensions (Max) Diameter (mm):12.5
Dimensions (Max) Height (mm): 2
Dimensions (Max) Weight (g): 0.8
Quality Housing Shell
Durable polycarbonate plastic housing shell and ABS provides the high endurance.
Double-Sided Adhesive Sticky Pad
The double-sided adhesive on one side provides the flexibility and convenience when replacing the RTC battery
Wise Owl
Reviewed in the United Kingdom on May 17, 2025
Awesome, this work fine with my Dell XPS 15 9560 (2017). I've been using the laptop for at least 8 months since fitting this and there have been no problems at all.
Emily
Reviewed in Canada on January 31, 2025
I've done IT for a living for 13 years. My dell XPS wouldn't turn on, was giving a solid amber error code pre boot. Couldn't get an accurate meaning for it for the dell xps. So I bought this on a wim. Fixed my laptop. Thanks!!
Bert
Reviewed in Germany on January 25, 2025
Die kleine Ersatzbatterie passt genau in meinen Dell XPS 13 9343 und tut genau, was sie soll, sehr gut und günstig.
Brittany
Reviewed in the United States on December 4, 2024
I ordered this for a Dell XPS 13 9365 but it turns out this item is about the same size as a normal CR2032 cell and does not fit. The correct cell for this should be an ML1220 which is significantly smaller. This is a very thin laptop and there is no possible space to fit this product even if I wanted to go to the trouble of extending the leads.
CraigW
Reviewed in Canada on November 9, 2024
Fixed my boot loop issue! 10/10
J. Shoemaker
Reviewed in the United States on August 15, 2023
I was replacing the big battery in a 2016 Dell XPS13-9350 so I figured I'd replace the CMOS battery as long as I had it opened up. This fit fine. The wires are longer than the OEM battery but I could tuck them in and close up the case without any real problem.
vincent sanchez
Reviewed in the United States on July 19, 2023
I bought this to replace the CMOS battery on my Dell XPS 15 9560, I noticed that my computer was not able to keep time anymore I read online that this can be one of the items that can cause that I looked on YouTube for a guide to replace this and after about half an hour I managed to replace it and I set the time and it kept. Seems like it managed to fix the time, Good Product.
Kevin Griffin
Reviewed in the United States on June 4, 2023
One of my laptops wouldn’t charge or boot. Turns out the CMOS battery went bad. Not an easy part to change, but it did the trick!
D. Dion
Reviewed in the United States on February 23, 2023
Ha! They were throwing away a perfectly good Dell XPS laptop at work!I thought it was DEAD too! Pressing the power button 'til I turned blue in the face and NOTHING would happen! Screen wouldn't light up, nothin'.Then I read that maybe replacing the CMOS battery would fix it!Googled around and found how to open up the laptop, remove the main battery, remove the CMOS battery, and then I came back to life. The error codes on the front (3-yellow, 1-white) indicated a bad CMOS battery. Ordered this one, replaced it, powered up the laptop and it booted up like brand new!A $1000 laptop for the price of a CMOS battery: $10!Sooooooooo happy!
NOVA Guy
Reviewed in the United States on December 27, 2023
CMOS battery in my Dell XPS 13 7390 died so I bought this as a replacement. Works/fits fine with one exception. The wires are much longer than those on the OEM battery...had to fold them over to fit. The battery has a little gummy adhesive sticker on the bottom. Just need to peel off the white protective paper.
Philippe Belliard
Reviewed in France on November 13, 2022
Petite mais puissante, rapidité de livraison prix à la hauteur du produit
Vector04
Reviewed in the United States on October 26, 2021
Battery Cell perfect replacement battery for CMOS, saved my XPS 13 Laptop. I thought I would have to junk it because it would NOT Power On or Boot up. Decided to try and replace the internal CMOS battery and Wallah it works perfectly now. So for less than $10, I have my Laptop back, and do not need to buy a new one!
pdaz
Reviewed in the United States on October 2, 2020
The polarity of this battery for a Dell XPS . . . is reversed from what my Acer Aspire S3-391 laptop needed, but was the only one I could find with the same type of connector. I shaved off the very small 'wings' on each side of the connector to the motherboard so that the + wire (Red) from the battery goes to the right place. I added a very small piece of electrical tape to make sure it doesn't slip out of the motherboard connector. Works fine !!
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