Best Laptop Replacement CMOS Batteries of 2026
* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Laptop Replacement CMOS Batteries are small, coin-shaped batteries that power the CMOS memory of your laptop. These batteries are essential for keeping the date and time accurate, as well as storing BIOS settings when the laptop is turned off. When the CMOS battery starts to fail, your laptop may experience issues such as incorrect date and time, boot failures, or BIOS errors. Replacing the CMOS battery is a simple and cost-effective solution to ensure your laptop runs smoothly. There are various reliable and compatible brands of replacement CMOS batteries available in the market that you can easily install yourself or seek professional advice.
At a Glance: Our Top Picks
#TOP 1
9.9
#TOP 2
9.8
#TOP 3
9.6
Top 10 Laptop Replacement CMOS Batteries
Rechargeable ML2032 Battery for Logitech K750
The ML2032 Rechargeable Battery is a convenient power source for your Logitech K750 keyboard and other devices. With a voltage of 3.0V, it ensures reliable performance. Its excellent charge and discharge cycle characteristics mean you can enjoy extended use without frequent replacements. Additionally, the low self-discharge rate allows you to keep the battery stored for longer periods without losing power, giving you peace of mind. This battery’s quality performance ensures that your devices run smoothly and efficiently.
ViCep 5-Pack CR2032 CMOS Battery 3V Motherboard BIOS Batteries with 2 Wire Leads and MOLEX Connector Computer Replacement
Gintai ML1220 Bios CMOS Battery for Dell XPS 13 7390 9305 9343 9350 9360 9365 9370 9380 / XPS 15 9550 9560 9570 / Precision 5510 5520 5530 GC00 20027 R00
ZAHARA CMOS Battery GC020027R00 for Dell XPS 13 7390 9305 9343 9350 9360 9365 9370 9380 XPS 15 9550 9560 9570 Precision 5510 5520 5530 MLL 1220 cm CMOS Battery Motherboard Bios Battery
ZAHARA CR2032 CMOS Battery for Dell Latitude 2100 D610 D620 D630 D820 D830 M90 Latitude 5280 P27S E6440 E7240 E7470 P61G E5540 E5430 E5450 E54700 P62G E5480 E5490 E5570 7280 7290 7380 7390 7480 7490
ZAHARA CR2032 COMS Battery for Dell Insp-iron 5368 5378 7368 7378 7370 7569 3340 5423 Latitude 3580 T79G002 CR2032 23.21212.031 651948-001 691572-001 CMOS Battery Motherboard bios batterie
Gintai ML1220 Bios CMOS Battery for Razer Blade RZ09-0270 RZ09-02705E75 RZ09-02705E76 RZ09-0370 RZ09-0370BEA3 RZ09-0370CEA3 RZ09-0370CEA3 70AE23 GC020027R00
Gintai CR2032 Bios CMOS Battery for Dell Latitude 3320 3510 3520 5520 5521 5540 5550 Latitude 3310 2-in-1 023.22032.0611 Battery RTC PC Battery Holder for Laptop Battery Batteries
Gintai CR1620 Bios CMOS Battery for HP EliteBook 735 830 G5/G6,830 835 840 835 845 G7/G8,830 835 840 845 860 965 G11,835 845 G10,ProBook 435 G7/G8/G9/G10,635 Aero G7 G8,L13694-001
Gintai CR2032 Bios CMOS Battery for Dell Latitude 3300 3301 3310 3330 3340 3410 3470 3480 3570 5310 5420 Latitude 3330 3340 2in1 Vostro 5501 5500 2 x Computer Battery Portable
Frequently Asked Questions (FAQs)
1. Can you replace laptop CMOS battery?
The CMOS battery is a piece of hardware that's unique to laptops. When it dies, it could cause your laptop to encounter problems booting up. Thankfully, it's easy to install a new CMOS battery in your laptop.
2. Is it worth replacing CMOS battery?
The CMOS (Complementary Metal Oxide Semiconductor) chip on your computer remembers everything like the disk drive, time and date, etc., so you don't want to have a CMOS battery failure. The CMOS battery always provides power to the CMOS chip – i.e., even when your computer is OFF – to save all the settings.
3. Is CMOS battery necessary for laptop?
CMOS RAM requires a battery; the settings would otherwise be lost when the PC was switched off. Modern computers don't use CMOS RAM anymore. They store the BIOS settings in non-volatile memory, which means that the settings don't need constant power to be saved.
4. Can CMOS battery affect laptop battery?
if battery to laptop is removed and the plug comes lose, or dead battery and the plug comes lose. the CMOS was the redundancy power for those settings, without it the unit will need constant power from one of the other sources at all times or you will need to reset the BIOS settings ( time and date- RAM speed, etc.)
During our laptop replacement cmos battery research, we found 221 laptop replacement cmos battery products and shortlisted 10 quality products. We collected and analyzed 2,433 customer reviews through our big data system to write the laptop replacement cmos batteries list. We found that most customers choose laptop replacement cmos batteries with an average price of £20.00.
The laptop replacement cmos batteries are available for purchase. We have researched hundreds of brands and picked the top brands of laptop replacement cmos batteries, including ViCep, Gintai, ZAHARA.
Tom Law is an adventurer who has captured his love for nature into all of his works. A native of Newcastle, Tom has always wanted to share beautiful stories alongside the lovely sights of nature. Fortunately, he took into photography on one of his many journeys and gradually grew a passion for it. Tom Law is now an expert photographer who tours the world while creating and keeping memories of his adventures. He frequently puts his thoughts and experiences into writing.