CMOS Batteries

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RTC CMOS Battery for Lenovo ThinkPad A22M

RTC CMOS Battery for Lenovo ThinkPad A22M

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad A22MLenovo ThinkPad A22M CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad A21P

RTC CMOS Battery for Lenovo ThinkPad A21P

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad A21PLenovo ThinkPad A21P CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad A21e-2628

RTC CMOS Battery for Lenovo ThinkPad A21e-2628

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad A21e-2628Lenovo ThinkPad A21e-2628 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad A21M

RTC CMOS Battery for Lenovo ThinkPad A21M

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad A21MLenovo ThinkPad A21M CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad A20P

RTC CMOS Battery for Lenovo ThinkPad A20P

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad A20PLenovo ThinkPad A20P CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad A20M

RTC CMOS Battery for Lenovo ThinkPad A20M

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad A20MLenovo ThinkPad A20M CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad Yoga 12 S1

RTC CMOS Battery for Lenovo ThinkPad Yoga 12 S1

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad Yoga 12 S1Lenovo ThinkPad Yoga 12 S1 CMOS batteries are the highest-quality...
RTC CMOS Battery for Lenovo ThinkPad Yoga 11e (Type 20HS, 20HU)

RTC CMOS Battery for Lenovo ThinkPad Yoga 11e (Type 20HS, 20HU)

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad Yoga 11e (Type 20HS, 20HU)Lenovo ThinkPad Yoga 11e (Type 20HS, 20HU) CMOS...
RTC CMOS Battery for Lenovo ThinkPad Yoga 11e (Type 20E5, 20E7)

RTC CMOS Battery for Lenovo ThinkPad Yoga 11e (Type 20E5, 20E7)

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad Yoga 11e (Type 20E5, 20E7)Lenovo ThinkPad Yoga 11e (Type 20E5, 20E7) CMOS...
RTC CMOS Battery for Lenovo ThinkPad Yoga 11e (Type 20G8, 20GA)

RTC CMOS Battery for Lenovo ThinkPad Yoga 11e (Type 20G8, 20GA)

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad Yoga 11e (Type 20G8, 20GA)Lenovo ThinkPad Yoga 11e (Type 20G8, 20GA) CMOS...
RTC CMOS Battery for Lenovo ThinkPad X220i (Tablet)

RTC CMOS Battery for Lenovo ThinkPad X220i (Tablet)

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X220i (Tablet)Lenovo ThinkPad X220i (Tablet) CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Lenovo ThinkPad Yoga 11e (Type 20D9, 20DA)

RTC CMOS Battery for Lenovo ThinkPad Yoga 11e (Type 20D9, 20DA)

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad Yoga 11e (Type 20D9, 20DA)Lenovo ThinkPad Yoga 11e (Type 20D9, 20DA) CMOS...

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.