CMOS Batteries

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RTC CMOS Battery for Dell Inspiron 15 3541 / P40F / P40F001

RTC CMOS Battery for Dell Inspiron 15 3541 / P40F / P40F001

£4.70
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15 3541 / P40F / P40F001Dell Inspiron 15 3541 / P40F...
RTC CMOS Battery for Dell Inspiron 15 3537 / P28F / P28F001 / P28F003

RTC CMOS Battery for Dell Inspiron 15 3537 / P28F / P28F001 / P28F003

£4.70
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15 3537 / P28F / P28F001 / P28F003Dell Inspiron 15 3537...
RTC CMOS Battery for Dell Inspiron 15 3521 / P112F / P112F004

RTC CMOS Battery for Dell Inspiron 15 3521 / P112F / P112F004

£4.70
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15 3521 / P112F / P112F004Dell Inspiron 15 3521 / P112F...
RTC CMOS Battery for Dell Inspiron 15 3505 / P90F / P90F004

RTC CMOS Battery for Dell Inspiron 15 3505 / P90F / P90F004

£4.70
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15 3505 / P90F / P90F004Dell Inspiron 15 3505 / P90F...
RTC CMOS Battery for Dell Inspiron 15 3502 / P90F / P90F003

RTC CMOS Battery for Dell Inspiron 15 3502 / P90F / P90F003

£4.70
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15 3502 / P90F / P90F003Dell Inspiron 15 3502 / P90F...
RTC CMOS Battery for Dell Inspiron 15 3501 / P90F / P90F002 / P90F005 / P90F006

RTC CMOS Battery for Dell Inspiron 15 3501 / P90F / P90F002 / P90F005 / P90F006

£4.70
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15 3501 / P90F / P90F002 / P90F005 / P90F006Dell Inspiron...
RTC CMOS Battery for Dell Inspiron 15 1564 / P08F / P08F001

RTC CMOS Battery for Dell Inspiron 15 1564 / P08F / P08F001

£4.70
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15 1564 / P08F / P08F001Dell Inspiron 15 1564 / P08F...
RTC CMOS Battery for Dell Inspiron 14 7472 / P74G / P74G001

RTC CMOS Battery for Dell Inspiron 14 7472 / P74G / P74G001

£4.70
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 14 7472 / P74G / P74G001Dell Inspiron 14 7472 / P74G...
RTC CMOS Battery for Dell Inspiron 14 7460 / P74G / P74G001

RTC CMOS Battery for Dell Inspiron 14 7460 / P74G / P74G001

£4.70
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 14 7460 / P74G / P74G001Dell Inspiron 14 7460 / P74G...
RTC CMOS Battery for Dell Inspiron 14 7447 / P55G / P55G001

RTC CMOS Battery for Dell Inspiron 14 7447 / P55G / P55G001

£4.70
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 14 7447 / P55G / P55G001Dell Inspiron 14 7447 / P55G...
RTC CMOS Battery for Dell Inspiron 14 7437 / P42G / P42G001

RTC CMOS Battery for Dell Inspiron 14 7437 / P42G / P42G001

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 14 7437 / P42G / P42G001Dell Inspiron 14 7437 / P42G...
RTC CMOS Battery for Dell Inspiron 14 7425 2-in-1 / P161G / P161G003

RTC CMOS Battery for Dell Inspiron 14 7425 2-in-1 / P161G / P161G003

£8.63
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 14 7425 2-in-1 / P161G / P161G003Dell Inspiron 14 7425 2-in-1...

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.