CMOS Batteries

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RTC CMOS Battery for Lenovo ThinkPad E590 (Type 20NB, 20NC)

RTC CMOS Battery for Lenovo ThinkPad E590 (Type 20NB, 20NC)

$9.99 $10.99
High-quality and reliable CMOS battery for your Lenovo ThinkPad E590 (Type 20NB, 20NC)Lenovo ThinkPad E590 (Type 20NB, 20NC) CMOS batteries are the highest-quality lithium-ion batteries on the market. High power...
RTC CMOS Battery for Lenovo ThinkPad X1 Extreme 2-nd

RTC CMOS Battery for Lenovo ThinkPad X1 Extreme 2-nd

$9.99 $10.99
High-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Extreme 2-ndLenovo ThinkPad X1 Extreme 2-nd CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient...
RTC CMOS Battery for Lenovo ThinkPad X1 Carbon 3rd Gen (NOT FOR TABLET VERSION)

RTC CMOS Battery for Lenovo ThinkPad X1 Carbon 3rd Gen (NOT FOR TABLET VERSION)

$9.99 $10.99
High-quality and reliable CMOS battery for your RTC CMOS Battery for Lenovo ThinkPad X1 Carbon 3rd Gen (NOT FOR TABLET VERSION)RTC CMOS Battery for Lenovo ThinkPad X1 Carbon 3rd Gen...
RTC CMOS Battery for Lenovo ThinkPad Edge E531

RTC CMOS Battery for Lenovo ThinkPad Edge E531

$9.99 $10.99
High-quality and reliable CMOS battery for your Lenovo ThinkPad Edge E531Lenovo ThinkPad Edge E531 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and...
RTC CMOS Battery for Asus ROG GU501GM

RTC CMOS Battery for ASUS ROG GU501GM

$9.99 $10.99
High-quality and reliable CMOS battery for your ASUS ROG GU501GMASUS ROG GU501GM CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long service...
RTC CMOS Battery for Lenovo ThinkPad P1 (Type 20MD, 20ME)

RTC CMOS Battery for Lenovo ThinkPad P1 (Type 20MD, 20ME)

$9.99 $10.99
High-quality and reliable CMOS battery for your Lenovo ThinkPad P1 (Type 20MD, 20ME)Lenovo ThinkPad P1 (Type 20MD, 20ME) CMOS batteries are the highest-quality lithium-ion batteries on the market. High power...
RTC CMOS Battery for Dell XPS 13 7390

RTC CMOS Battery for Dell XPS 13 7390

$9.99 $10.99
High-quality and reliable CMOS battery for your Dell XPS 13 7390Dell XPS 13 7390 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and...
RTC CMOS Battery for Dell Latitude 7400 2-in-1 (Not for regular Latitude 7400)

RTC CMOS Battery for Dell Latitude 7400 2-in-1 (Not for regular Latitude 7400)

$9.99 $10.99
High-quality and reliable CMOS battery for your RTC CMOS Battery for Dell Latitude 7400 2-in-1 (Not for regular Latitude 7400)RTC CMOS Battery for Dell Latitude 7400 2-in-1 (Not for regular...
RTC CMOS Battery for Dell XPS 15 9575 2-in-1

RTC CMOS Battery for Dell XPS 15 9575 2-in-1

$9.99 $10.99
High-quality and reliable CMOS battery for your Dell XPS 15 9575 2-in-1Dell XPS 15 9575 2-in-1 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient...
RTC CMOS Battery for Dell Precision M6500

RTC CMOS Battery for Dell Precision M6500

$9.99 $10.99
High-quality and reliable CMOS battery for your Dell Precision M6500Dell Precision M6500 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long service...
RTC CMOS Battery for Lenovo ThinkPad X1 Carbon 7th Gen (Type 20QD, 20QE)

RTC CMOS Battery for Lenovo ThinkPad X1 Carbon 7th Gen (Type 20QD, 20QE)

$9.99 $10.99
High-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Carbon 7th Gen (Type 20QD, 20QE)Lenovo ThinkPad X1 Carbon 7th Gen (Type 20QD, 20QE) CMOS batteries are the highest-quality lithium-ion...
RTC CMOS Battery for Lenovo IdeaPad 5-15ARE05

RTC CMOS Battery for Lenovo IdeaPad 5-15ARE05

$9.99 $10.99
High-quality and reliable CMOS battery for your Lenovo IdeaPad 5-15ARE05Lenovo IdeaPad 5-15ARE05 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long service...

Only the Best CMOS Battery

If the computer starts displaying the wrong date and time at every boot, this is one of the important signs that it is time to change the battery on the motherboard. If that is not carried out in time, then the BIOS simply will not boot, and the PC will not be able to start the OS.


What is a CMOS battery?

For stable operation of the built-in timer and the CMOS chip, which stores all the BIOS configuration, a battery is needed. It supplies power around the clock, even if the system unit is disconnected from the mains. It is located directly on the motherboard, in the most conspicuous place in the round slot.

RTC CMOS battery discharge symptoms

The average working time of a CMOS battery for laptop is five years. But the battery can run out earlier. You can notice this process by the following signs: the time lags behind the set by a couple of minutes - this is the first sign of a malfunction; failure to turn on the computer, the system starts only after turning on F1 - the second and most serious sign of a discharge. If the CMOS battery for motherboard is not replaced in time, then not only the set date and time are reset, but also the BIOS settings, which is especially noticeable for those users who set up the system for themselves. These settings include: download parameters; acceleration of system startup; setting up a video card and coolers; configuring interfaces. The output of a system message is the last sign that the tablet is out of order. Such messages can be: wrong time and date; error in setting or reading CMOS; error of control memory CMOS

How to change computer BIOS battery?

CMOS batteries can be changed by yourself, it is not a complicated process. The main thing is to get the right battery, the one that will fit your laptop or computer. On the site https://rometechcases.com/ suitable computer models are registered for each battery, it will be difficult to make a mistake. If you find it difficult to make the right decision, our support team will be happy to provide you with the assistance you need.