CMOS Batteries

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RTC CMOS Battery for Dell Precision M4400 / PP30L

RTC CMOS Battery for Dell Precision M4400 / PP30L

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M4400 / PP30LDell Precision M4400 / PP30L CMOS batteries are the...
RTC CMOS Battery for Dell Precision M4300 / PP04X

RTC CMOS Battery for Dell Precision M4300 / PP04X

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M4300 / PP04XDell Precision M4300 / PP04X CMOS batteries are the...
RTC CMOS Battery for Dell Precision M3800 / P31F / P31F001

RTC CMOS Battery for Dell Precision M3800 / P31F / P31F001

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M3800 / P31F / P31F001Dell Precision M3800 / P31F / P31F001...
RTC CMOS Battery for Dell Precision M2800 / P29F / P29F001

RTC CMOS Battery for Dell Precision M2800 / P29F / P29F001

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M2800 / P29F / P29F001Dell Precision M2800 / P29F / P29F001...
RTC CMOS Battery for Dell Precision M2300 / PP18L

RTC CMOS Battery for Dell Precision M2300 / PP18L

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M2300 / PP18LDell Precision M2300 / PP18L CMOS batteries are the...
RTC CMOS Battery for Dell Precision M90 / PP05XA

RTC CMOS Battery for Dell Precision M90 / PP05XA

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M90 / PP05XADell Precision M90 / PP05XA CMOS batteries are the...
RTC CMOS Battery for Dell Precision M70 / PP15L

RTC CMOS Battery for Dell Precision M70 / PP15L

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M70 / PP15LDell Precision M70 / PP15L CMOS batteries are the...
RTC CMOS Battery for Dell Precision M65 / PP04X

RTC CMOS Battery for Dell Precision M65 / PP04X

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M65 / PP04XDell Precision M65 / PP04X CMOS batteries are the...
RTC CMOS Battery for Dell Precision M60 / PP02X

RTC CMOS Battery for Dell Precision M60 / PP02X

£9.71
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M60 / PP02XDell Precision M60 / PP02X CMOS batteries are the...
RTC CMOS Battery for Dell Precision M50 Workstation / PP01X

RTC CMOS Battery for Dell Precision M50 Workstation / PP01X

£9.71
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M50 Workstation / PP01XDell Precision M50 Workstation / PP01X CMOS batteries...
RTC CMOS Battery for Dell Precision M40 Workstation / PP01X

RTC CMOS Battery for Dell Precision M40 Workstation / PP01X

£9.71
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M40 Workstation / PP01XDell Precision M40 Workstation / PP01X CMOS batteries...
RTC CMOS Battery for Dell Precision M20 / PP11L

RTC CMOS Battery for Dell Precision M20 / PP11L

£8.90
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Precision M20 / PP11LDell Precision M20 / PP11L CMOS batteries are 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.