CMOS Batteries

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RTC CMOS Battery for Sony VAIO SVS15127PXB

RTC CMOS Battery for Sony VAIO SVS15127PXB

$15.68
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Sony VAIO SVS15127PXBSony VAIO SVS15127PXB CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Acer Aspire One ZA3

RTC CMOS Battery for Acer Aspire One ZA3

$17.11
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Acer Aspire One ZA3Acer Aspire One ZA3 CMOS batteries are the highest-quality lithium-ion batteries...
Replacement RTC CMOS Battery for HP (Part Number) 683502-001, 23.21212.033

Replacement RTC CMOS Battery for HP (Part Number) 683502-001, 23.21212.033

$15.68
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your HP (Part Number) 683502-001, 23.21212.033 HP (Part Number) 683502-001, 23.21212.033 CMOS batteries are...
Replacement RTC CMOS Battery for Dell (Part Number) 077-A00

Replacement RTC CMOS Battery for Dell (Part Number) 077-A00

$15.68
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell (Part Number) 077-A00Dell (Part Number) 077-A00 CMOS batteries are the highest-quality lithium-ion batteries...
Replacement RTC CMOS Battery for Dell (Part Number) GC020012S00

Replacement RTC CMOS Battery for Dell (Part Number) GC020012S00

$15.68
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell (Part Number) GC020012S00Dell (Part Number) GC020012S00 CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Lenovo Y50-70 Touch

RTC CMOS Battery for Lenovo Y50-70 Touch

$15.68
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo Y50-70 TouchLenovo Y50-70 Touch CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for HP Compaq 8710w

RTC CMOS Battery for HP Compaq 8710w

$15.68
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your HP Compaq 8710wHP Compaq 8710w CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Toshiba Portege M800

RTC CMOS Battery for Toshiba Portege M800

$15.68
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Toshiba Portege M800Toshiba Portege M800 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Toshiba Portege M100

RTC CMOS Battery for Toshiba Portege M100

$15.68
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Toshiba Portege M100Toshiba Portege M100 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Samsung X20

RTC CMOS Battery for Samsung X20

$15.68
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Samsung X20Samsung X20 CMOS batteries are the highest-quality lithium-ion batteries on the market. High...
RTC CMOS Battery for Samsung V25

RTC CMOS Battery for Samsung V25

$15.68
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Samsung V25Samsung V25 CMOS batteries are the highest-quality lithium-ion batteries on the market. High...
RTC CMOS Battery for Samsung V20

RTC CMOS Battery for Samsung V20

$15.68
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Samsung V20Samsung V20 CMOS batteries are the highest-quality lithium-ion batteries on the market. High...

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.