CMOS Batteries

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RTC CMOS Battery for HP EliteBook 840 G7

RTC CMOS Battery for HP EliteBook 840 G7

$10.99
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RTC CMOS Battery for HP Elitebook 8470P

RTC CMOS Battery for HP Elitebook 8470P

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your HP Elitebook 8470PHP Elitebook 8470P CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Sony Playstation 2 Slimline

RTC CMOS Battery for Sony Playstation 2 Slimline

$10.99
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RTC CMOS Battery for Lenovo ThinkPad Yoga 14 (Type 20DM, 20DN)

RTC CMOS Battery for Lenovo ThinkPad Yoga 14 (Type 20DM, 20DN)

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad Yoga 14 (Type 20DM, 20DN)Lenovo ThinkPad Yoga 14 (Type 20DM, 20DN) CMOS...
RTC CMOS Battery for Lenovo ThinkPad X1 Yoga 4th Gen (Type 20QF, 20QG)

RTC CMOS Battery for Lenovo ThinkPad X1 Yoga 4th Gen (Type 20QF, 20QG)

$10.99
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RTC CMOS Battery for Lenovo ThinkPad T14 Gen 1 (Type 20S2, 20S3)

RTC CMOS Battery for Lenovo ThinkPad T14 Gen 1 (Type 20S2, 20S3)

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad T14 Gen 1 (Type 20S2, 20S3)Lenovo ThinkPad T14 Gen 1 (Type 20S2,...
RTC CMOS Battery for Lenovo ThinkPad L590 (Type 20Q7, 20Q8)

RTC CMOS Battery for Lenovo ThinkPad L590 (Type 20Q7, 20Q8)

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad L590 (Type 20Q7, 20Q8)Lenovo ThinkPad L590 (Type 20Q7, 20Q8) CMOS batteries are...
RTC CMOS Battery for Lenovo ThinkPad Edge E490

RTC CMOS Battery for Lenovo ThinkPad Edge E490

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad Edge E490Lenovo ThinkPad Edge E490 CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Lenovo IdeaPad Gaming 3-15ACH6

RTC CMOS Battery for Lenovo IdeaPad Gaming 3-15ACH6

$10.99
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RTC CMOS Battery for Lenovo ThinkPad X1 Extreme 3rd Gen (Type 20TK, 20TL)

RTC CMOS Battery for Lenovo ThinkPad X1 Extreme 3rd Gen (Type 20TK, 20TL)

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Extreme 3rd Gen (Type 20TK, 20TL)Lenovo ThinkPad X1 Extreme 3rd Gen...
RTC CMOS Battery for Lenovo ThinkPad T480

RTC CMOS Battery for Lenovo ThinkPad T480

$10.99
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RTC CMOS Battery for ASUS ZenBook UX303L

RTC CMOS Battery for ASUS ZenBook UX303L

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your ASUS ZenBook UX303LASUS ZenBook UX303L 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.