CMOS Batteries

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RTC CMOS Battery for Lenovo ThinkBook 15p IMH

RTC CMOS Battery for Lenovo ThinkBook 15p IMH

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkBook 15p IMHLenovo ThinkBook 15p IMH CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Lenovo N Series N24 Winbook

RTC CMOS Battery for Lenovo N Series N24 Winbook

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo N Series N24 WinbookLenovo N Series N24 Winbook CMOS batteries are the highest-quality...
RTC CMOS Battery for Lenovo Miix 520-12IKB (Type 20M3, 20M4) Tablet

RTC CMOS Battery for Lenovo Miix 520-12IKB (Type 20M3, 20M4) Tablet

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Miix 520-12IKB (Type 20M3, 20M4) TabletLenovo Miix 520-12IKB (Type 20M3, 20M4) Tablet CMOS...
RTC CMOS Battery for Lenovo Legion Y740-17IRHg

RTC CMOS Battery for Lenovo Legion Y740-17IRHg

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion Y740-17IRHgLenovo Legion Y740-17IRHg CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo Legion Y720-15IKB

RTC CMOS Battery for Lenovo Legion Y720-15IKB

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion Y720-15IKBLenovo Legion Y720-15IKB CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo Legion Y740-17ICHg

RTC CMOS Battery for Lenovo Legion Y740-17ICHg

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion Y740-17ICHgLenovo Legion Y740-17ICHg CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo Legion Y7000-2019-PG0

RTC CMOS Battery for Lenovo Legion Y7000-2019-PG0

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion Y7000-2019-PG0Lenovo Legion Y7000-2019-PG0 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo Legion Y7000-2019

RTC CMOS Battery for Lenovo Legion Y7000-2019

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion Y7000-2019Lenovo Legion Y7000-2019 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo Legion Y540-15IRH

RTC CMOS Battery for Lenovo Legion Y540-15IRH

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion Y540-15IRHLenovo Legion Y540-15IRH CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo Legion Y540-15IRH-PG0

RTC CMOS Battery for Lenovo Legion Y540-15IRH-PG0

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion Y540-15IRH-PG0Lenovo Legion Y540-15IRH-PG0 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo Legion Y520-15IKBM

RTC CMOS Battery for Lenovo Legion Y520-15IKBM

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion Y520-15IKBMLenovo Legion Y520-15IKBM CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo Legion 5-17ITH6H

RTC CMOS Battery for Lenovo Legion 5-17ITH6H

$17.16
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Legion 5-17ITH6HLenovo Legion 5-17ITH6H 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.