CMOS Batteries

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RTC CMOS Battery for HP Compaq Presario V3000

RTC CMOS Battery for HP Compaq Presario V3000

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your HP Compaq Presario V3000HP Compaq Presario V3000 CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Compaq Presario CQ72

RTC CMOS Battery for Compaq Presario CQ72

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Compaq Presario CQ72Compaq Presario CQ72 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Compaq Presario CQ70

RTC CMOS Battery for Compaq Presario CQ70

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Compaq Presario CQ70Compaq Presario CQ70 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Compaq Presario CQ60-320SA

RTC CMOS Battery for Compaq Presario CQ60-320SA

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Compaq Presario CQ60-320SACompaq Presario CQ60-320SA CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Compaq Presario CQ60

RTC CMOS Battery for Compaq Presario CQ60

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Compaq Presario CQ60Compaq Presario CQ60 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Compaq Presario CQ56

RTC CMOS Battery for Compaq Presario CQ56

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Compaq Presario CQ56Compaq Presario CQ56 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Compaq Presario CQ43

RTC CMOS Battery for Compaq Presario CQ43

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Compaq Presario CQ43Compaq Presario CQ43 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Compaq Presario CQ40

RTC CMOS Battery for Compaq Presario CQ40

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Compaq Presario CQ40Compaq Presario CQ40 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Compaq Mini CQ10

RTC CMOS Battery for Compaq Mini CQ10

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Compaq Mini CQ10Compaq Mini CQ10 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Compaq Presario CQ57

RTC CMOS Battery for Compaq Presario CQ57

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Compaq Presario CQ57Compaq Presario CQ57 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Compaq 436

RTC CMOS Battery for Compaq 436

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Compaq 436Compaq 436 CMOS batteries are the highest-quality lithium-ion batteries on the market. High...
RTC CMOS Battery for Compaq 435

RTC CMOS Battery for Compaq 435

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Compaq 435Compaq 435 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.