CMOS Batteries

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RTC CMOS Battery for Lenovo ThinkPad E15 Gen 3

RTC CMOS Battery for Lenovo ThinkPad E15 Gen 3

¥80.92
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad E15 Gen 3Lenovo ThinkPad E15 Gen 3 CMOS batteries are the highest-quality...
RTC CMOS Battery for Lenovo ThinkPad L390 Yoga (Type 20NT, 20NU)

RTC CMOS Battery for Lenovo ThinkPad L390 Yoga (Type 20NT, 20NU)

¥80.92
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad L390 Yoga (Type 20NT, 20NU)Lenovo ThinkPad L390 Yoga (Type 20NT, 20NU) CMOS...
RTC CMOS Battery for Lenovo ThinkPad Yoga 11e 5th Gen (Type 20LN, 20LM)

RTC CMOS Battery for Lenovo ThinkPad Yoga 11e 5th Gen (Type 20LN, 20LM)

¥80.92
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad Yoga 11e 5th Gen (Type 20LN, 20LM)Lenovo ThinkPad Yoga 11e 5th Gen...
RTC CMOS Battery for Lenovo Legion S7-15ACH6

RTC CMOS Battery for Lenovo Legion S7-15ACH6

¥103.01
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion S7-15ACH6Lenovo Legion S7-15ACH6 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo Legion 7-16ITHg6

RTC CMOS Battery for Lenovo Legion 7-16ITHg6

¥80.92
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion 7-16ITHg6Lenovo Legion 7-16ITHg6 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad Yoga 460

RTC CMOS Battery for Lenovo ThinkPad Yoga 460

¥80.92
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad Yoga 460Lenovo ThinkPad Yoga 460 CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Lenovo ThinkPad X1 Carbon 5th Gen

RTC CMOS Battery for Lenovo ThinkPad X1 Carbon 5th Gen

¥80.92
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Carbon 5th GenLenovo ThinkPad X1 Carbon 5th Gen CMOS batteries are...
RTC CMOS Battery for Lenovo ThinkPad L390 (Type 20NR, 20NS)

RTC CMOS Battery for Lenovo ThinkPad L390 (Type 20NR, 20NS)

¥80.92
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad L390 (Type 20NR, 20NS)Lenovo ThinkPad L390 (Type 20NR, 20NS) CMOS batteries are...
RTC CMOS Battery for Lenovo ThinkPad X230

RTC CMOS Battery for Lenovo ThinkPad X230

¥80.92
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X230Lenovo ThinkPad X230 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X220

RTC CMOS Battery for Lenovo ThinkPad X220

¥80.92
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X220Lenovo ThinkPad X220 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad T430

RTC CMOS Battery for Lenovo ThinkPad T430

¥80.92
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad T430Lenovo ThinkPad T430 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad R32

RTC CMOS Battery for Lenovo ThinkPad R32

¥80.92
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad R32Lenovo ThinkPad R32 CMOS batteries are the highest-quality lithium-ion batteries on the...

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.