CMOS Batteries

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RTC CMOS Battery for Lenovo ThinkPad E575

RTC CMOS Battery for Lenovo ThinkPad E575

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad E575Lenovo ThinkPad E575 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad E475

RTC CMOS Battery for Lenovo ThinkPad E475

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad E475Lenovo ThinkPad E475 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad E550

RTC CMOS Battery for Lenovo ThinkPad E550

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad E550Lenovo ThinkPad E550 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad E15 Gen 4 (Type 21ED, 21EE)

RTC CMOS Battery for Lenovo ThinkPad E15 Gen 4 (Type 21ED, 21EE)

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad E15 Gen 4 (Type 21ED, 21EE)Lenovo ThinkPad E15 Gen 4 (Type 21ED,...
RTC CMOS Battery for Lenovo ThinkPad A475

RTC CMOS Battery for Lenovo ThinkPad A475

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad A475Lenovo ThinkPad A475 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad A275

RTC CMOS Battery for Lenovo ThinkPad A275

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad A275Lenovo ThinkPad A275 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad 25 (Type 20K7)

RTC CMOS Battery for Lenovo ThinkPad 25 (Type 20K7)

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad 25 (Type 20K7)Lenovo ThinkPad 25 (Type 20K7) CMOS batteries are the highest-quality...
RTC CMOS Battery for Lenovo ThinkPad 11e Chromebook

RTC CMOS Battery for Lenovo ThinkPad 11e Chromebook

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad 11e ChromebookLenovo ThinkPad 11e Chromebook CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Lenovo ThinkPad A485

RTC CMOS Battery for Lenovo ThinkPad A485

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad A485Lenovo ThinkPad A485 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkBook 14s Yoga ITL

RTC CMOS Battery for Lenovo ThinkBook 14s Yoga ITL

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkBook 14s Yoga ITLLenovo ThinkBook 14s Yoga ITL CMOS batteries are the highest-quality...
RTC CMOS Battery for Lenovo Legion Y920-17IKB

RTC CMOS Battery for Lenovo Legion Y920-17IKB

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion Y920-17IKBLenovo Legion Y920-17IKB CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkBook 14 G3 ACL

RTC CMOS Battery for Lenovo ThinkBook 14 G3 ACL

¥80.83
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkBook 14 G3 ACLLenovo ThinkBook 14 G3 ACL CMOS batteries are the highest-quality...

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.