CMOS Batteries

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RTC CMOS Battery for Dell Precision 7960 Tower Desktop / D05X / D05X001

RTC CMOS Battery for Dell Precision 7960 Tower Desktop / D05X / D05X001

£4.85
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7960 Tower Desktop / D05X / D05X001Dell Precision 7960 Tower Desktop...
RTC CMOS Battery for Dell Precision 7920 Tower Desktop / D04X / D04X001

RTC CMOS Battery for Dell Precision 7920 Tower Desktop / D04X / D04X001

£4.85
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7920 Tower Desktop / D04X / D04X001Dell Precision 7920 Tower Desktop...
RTC CMOS Battery for Dell Precision 7875 Tower Desktop / D04T / D04T001

RTC CMOS Battery for Dell Precision 7875 Tower Desktop / D04T / D04T001

£4.85
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7875 Tower Desktop / D04T / D04T001Dell Precision 7875 Tower Desktop...
RTC CMOS Battery for Dell Precision 7865 Tower Desktop / D03T / D03T002

RTC CMOS Battery for Dell Precision 7865 Tower Desktop / D03T / D03T002

£4.85
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7865 Tower Desktop / D03T / D03T002Dell Precision 7865 Tower Desktop...
RTC CMOS Battery for Dell Precision 7820 Tower Desktop / D02T / D02T001

RTC CMOS Battery for Dell Precision 7820 Tower Desktop / D02T / D02T001

£4.85
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7820 Tower Desktop / D02T / D02T001Dell Precision 7820 Tower Desktop...
RTC CMOS Battery for Dell Precision 7780 / P115F / P115F002

RTC CMOS Battery for Dell Precision 7780 / P115F / P115F002

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7780 / P115F / P115F002Dell Precision 7780 / P115F / P115F002...
RTC CMOS Battery for Dell Precision 7770 / P115F / P115F001

RTC CMOS Battery for Dell Precision 7770 / P115F / P115F001

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7770 / P115F / P115F001Dell Precision 7770 / P115F / P115F001...
RTC CMOS Battery for Dell Precision 7760 / P44E / P44E002

RTC CMOS Battery for Dell Precision 7760 / P44E / P44E002

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7760 / P44E / P44E002Dell Precision 7760 / P44E / P44E002...
RTC CMOS Battery for Dell Precision 7750 / P44E / P44E001

RTC CMOS Battery for Dell Precision 7750 / P44E / P44E001

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7750 / P44E / P44E001Dell Precision 7750 / P44E / P44E001...
RTC CMOS Battery for Dell Precision 7740 / P34E / P34E002

RTC CMOS Battery for Dell Precision 7740 / P34E / P34E002

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7740 / P34E / P34E002Dell Precision 7740 / P34E / P34E002...
RTC CMOS Battery for Dell Precision 7730 / P34E / P34E001

RTC CMOS Battery for Dell Precision 7730 / P34E / P34E001

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7730 / P34E / P34E001Dell Precision 7730 / P34E / P34E001...
RTC CMOS Battery for Dell Precision 7720 / P29E / P29E002

RTC CMOS Battery for Dell Precision 7720 / P29E / P29E002

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision 7720 / P29E / P29E002Dell Precision 7720 / P29E / P29E002...

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.