CMOS Batteries

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RTC CMOS Battery for Dell Inspiron 15R 5521 / P28F / P28F001 / P28F003

RTC CMOS Battery for Dell Inspiron 15R 5521 / P28F / P28F001 / P28F003

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15R 5521 / P28F / P28F001 / P28F003Dell Inspiron 15R 5521...
RTC CMOS Battery for Dell Inspiron 15R 5520 / P25F / P25F001

RTC CMOS Battery for Dell Inspiron 15R 5520 / P25F / P25F001

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15R 5520 / P25F / P25F001Dell Inspiron 15R 5520 / P25F...
RTC CMOS Battery for Dell Inspiron 14R 7420 / P33G / P33G001

RTC CMOS Battery for Dell Inspiron 14R 7420 / P33G / P33G001

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 14R 7420 / P33G / P33G001Dell Inspiron 14R 7420 / P33G...
RTC CMOS Battery for Dell Inspiron 14R 5437 / P37G / P37G003

RTC CMOS Battery for Dell Inspiron 14R 5437 / P37G / P37G003

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 14R 5437 / P37G / P37G003Dell Inspiron 14R 5437 / P37G...
RTC CMOS Battery for Dell Inspiron 14R 5421 / P37G / P37G001

RTC CMOS Battery for Dell Inspiron 14R 5421 / P37G / P37G001

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 14R 5421 / P37G / P37G001Dell Inspiron 14R 5421 / P37G...
RTC CMOS Battery for Dell Inspiron 14R 5420 / P33G / P33G001

RTC CMOS Battery for Dell Inspiron 14R 5420 / P33G / P33G001

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 14R 5420 / P33G / P33G001Dell Inspiron 14R 5420 / P33G...
RTC CMOS Battery for Dell Inspiron 17R N7110 / P14E / P14E001

RTC CMOS Battery for Dell Inspiron 17R N7110 / P14E / P14E001

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 17R N7110 / P14E / P14E001Dell Inspiron 17R N7110 / P14E...
RTC CMOS Battery for Dell Inspiron 17 N7010 / P08E / P08E001

RTC CMOS Battery for Dell Inspiron 17 N7010 / P08E / P08E001

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 17 N7010 / P08E / P08E001Dell Inspiron 17 N7010 / P08E...
RTC CMOS Battery for Dell Inspiron 15R N5110 / P17F / P17F001

RTC CMOS Battery for Dell Inspiron 15R N5110 / P17F / P17F001

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15R N5110 / P17F / P17F001Dell Inspiron 15R N5110 / P17F...
RTC CMOS Battery for Dell Inspiron 15 N5050 / P18F / P18F003

RTC CMOS Battery for Dell Inspiron 15 N5050 / P18F / P18F003

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15 N5050 / P18F / P18F003Dell Inspiron 15 N5050 / P18F...
RTC CMOS Battery for Dell Inspiron 15 N5040 / P18F / P18F002

RTC CMOS Battery for Dell Inspiron 15 N5040 / P18F / P18F002

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15 N5040 / P18F / P18F002Dell Inspiron 15 N5040 / P18F...
RTC CMOS Battery for Dell Inspiron 15 N5030 / P07F / P07F003

RTC CMOS Battery for Dell Inspiron 15 N5030 / P07F / P07F003

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 15 N5030 / P07F / P07F003Dell Inspiron 15 N5030 / P07F...

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.