CMOS Batteries

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RTC CMOS Battery for Lenovo ThinkPad X220 (Tablet)

RTC CMOS Battery for Lenovo ThinkPad X220 (Tablet)

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X220 (Tablet)Lenovo ThinkPad X220 (Tablet) CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Lenovo ThinkPad X230 (Tablet)

RTC CMOS Battery for Lenovo ThinkPad X230 (Tablet)

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X230 (Tablet)Lenovo ThinkPad X230 (Tablet) CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Lenovo ThinkPad X270 (Type 20K6, 20K5)

RTC CMOS Battery for Lenovo ThinkPad X270 (Type 20K6, 20K5)

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X270 (Type 20K6, 20K5)Lenovo ThinkPad X270 (Type 20K6, 20K5) CMOS batteries are...
RTC CMOS Battery for Lenovo ThinkPad X220i

RTC CMOS Battery for Lenovo ThinkPad X220i

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X220iLenovo ThinkPad X220i CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X201s

RTC CMOS Battery for Lenovo ThinkPad X201s

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X201sLenovo ThinkPad X201s CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X201i

RTC CMOS Battery for Lenovo ThinkPad X201i

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X201iLenovo ThinkPad X201i CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X200s

RTC CMOS Battery for Lenovo ThinkPad X200s

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X200sLenovo ThinkPad X200s CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X1 Tablet 2nd Gen (FOR TABLET VERSION ONLY)

RTC CMOS Battery for Lenovo ThinkPad X1 Tablet 2nd Gen (FOR TABLET VERSION ONLY)

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Tablet 2nd Gen (FOR TABLET VERSION ONLY)Lenovo ThinkPad X1 Tablet 2nd...
RTC CMOS Battery for Lenovo ThinkPad T570 (Type 20JW, 20JX)

RTC CMOS Battery for Lenovo ThinkPad T570 (Type 20JW, 20JX)

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad T570 (Type 20JW, 20JX)Lenovo ThinkPad T570 (Type 20JW, 20JX) CMOS batteries are...
RTC CMOS Battery for Lenovo ThinkPad T495s (Type 20QJ, 20QK)

RTC CMOS Battery for Lenovo ThinkPad T495s (Type 20QJ, 20QK)

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad T495s (Type 20QJ, 20QK)Lenovo ThinkPad T495s (Type 20QJ, 20QK) CMOS batteries are...
RTC CMOS Battery for Lenovo ThinkPad T490s (Type 20NX, 20NY)

RTC CMOS Battery for Lenovo ThinkPad T490s (Type 20NX, 20NY)

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad T490s (Type 20NX, 20NY)Lenovo ThinkPad T490s (Type 20NX, 20NY) CMOS batteries are...
RTC CMOS Battery for Lenovo ThinkPad T490 (Type 20RY, 20RX)

RTC CMOS Battery for Lenovo ThinkPad T490 (Type 20RY, 20RX)

$15.57
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad T490 (Type 20RY, 20RX)Lenovo ThinkPad T490 (Type 20RY, 20RX) CMOS batteries are...

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.