CMOS Batteries

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RTC CMOS Battery for Lenovo ThinkPad T480s (Type 20L7, 20L8)

RTC CMOS Battery for Lenovo ThinkPad T480s (Type 20L7, 20L8)

$10.99
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RTC CMOS Battery for Lenovo ThinkPad T470s (Type 20JS, 20JT)

RTC CMOS Battery for Lenovo ThinkPad T470s (Type 20JS, 20JT)

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad T470s (Type 20JS, 20JT)Lenovo ThinkPad T470s (Type 20JS, 20JT) CMOS batteries are...
RTC CMOS Battery for Lenovo ThinkPad T470 (Type 20JM, 20JN)

RTC CMOS Battery for Lenovo ThinkPad T470 (Type 20JM, 20JN)

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad T470 (Type 20JM, 20JN)Lenovo ThinkPad T470 (Type 20JM, 20JN) CMOS batteries are...
RTC CMOS Battery for Lenovo ThinkPad T460s

RTC CMOS Battery for Lenovo ThinkPad T460s

$10.99
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RTC CMOS Battery for Lenovo ThinkPad T430s

RTC CMOS Battery for Lenovo ThinkPad T430s

$10.99
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RTC CMOS Battery for Lenovo ThinkPad T420s

RTC CMOS Battery for Lenovo ThinkPad T420s

$10.99
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RTC CMOS Battery for Lenovo ThinkPad T420i

RTC CMOS Battery for Lenovo ThinkPad T420i

$10.99
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RTC CMOS Battery for Lenovo ThinkPad T410i

RTC CMOS Battery for Lenovo ThinkPad T410i

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad T410iLenovo ThinkPad T410i CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad T400s

RTC CMOS Battery for Lenovo ThinkPad T400s

$10.99
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RTC CMOS Battery for Lenovo ThinkPad T15 (Type 20S6, 20S7)

RTC CMOS Battery for Lenovo ThinkPad T15 (Type 20S6, 20S7)

$10.99
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RTC CMOS Battery for Lenovo ThinkPad T15 Gen 2 (Type 20W4, 20W5)

RTC CMOS Battery for Lenovo ThinkPad T15 Gen 2 (Type 20W4, 20W5)

$10.99
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RTC CMOS Battery for Lenovo ThinkPad T14s Gen 3 (Type 21BR, 21BS)

RTC CMOS Battery for Lenovo ThinkPad T14s Gen 3 (Type 21BR, 21BS)

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad T14s Gen 3 (Type 21BR, 21BS)Lenovo ThinkPad T14s Gen 3 (Type 21BR,...

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.