CMOS Batteries

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RTC CMOS Battery for Lenovo ThinkPad X300 6477

RTC CMOS Battery for Lenovo ThinkPad X300 6477

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X300 6477Lenovo ThinkPad X300 6477 CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Lenovo ThinkPad X250S

RTC CMOS Battery for Lenovo ThinkPad X250S

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X250SLenovo ThinkPad X250S CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X300 6476

RTC CMOS Battery for Lenovo ThinkPad X300 6476

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X300 6476Lenovo ThinkPad X300 6476 CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Lenovo ThinkPad X240S

RTC CMOS Battery for Lenovo ThinkPad X240S

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X240SLenovo ThinkPad X240S CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X240I

RTC CMOS Battery for Lenovo ThinkPad X240I

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X240ILenovo ThinkPad X240I CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X230T

RTC CMOS Battery for Lenovo ThinkPad X230T

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X230TLenovo ThinkPad X230T CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X230U

RTC CMOS Battery for Lenovo ThinkPad X230U

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X230ULenovo ThinkPad X230U CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X220T

RTC CMOS Battery for Lenovo ThinkPad X220T

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X220TLenovo ThinkPad X220T CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X230i

RTC CMOS Battery for Lenovo ThinkPad X230i

¥80.83
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RTC CMOS Battery for Lenovo ThinkPad X200si

RTC CMOS Battery for Lenovo ThinkPad X200si

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X200siLenovo ThinkPad X200si CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X200t

RTC CMOS Battery for Lenovo ThinkPad X200t

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X200tLenovo ThinkPad X200t CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X13 Gen 3 (Type 21BN, 21BQ)

RTC CMOS Battery for Lenovo ThinkPad X13 Gen 3 (Type 21BN, 21BQ)

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X13 Gen 3 (Type 21BN, 21BQ)Lenovo ThinkPad X13 Gen 3 (Type 21BN,...

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.