CMOS Batteries

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RTC CMOS Battery for Dell Inspiron 13z N301z / P11S / P11S002

RTC CMOS Battery for Dell Inspiron 13z N301z / P11S / P11S002

$10.99
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RTC CMOS Battery for Dell Inspiron 13z 5323 / P31G / P31G001

RTC CMOS Battery for Dell Inspiron 13z 5323 / P31G / P31G001

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 13z 5323 / P31G / P31G001Dell Inspiron 13z 5323 / P31G...
RTC CMOS Battery for Dell Inspiron 11z 1121 / P07T / P07T001

RTC CMOS Battery for Dell Inspiron 11z 1121 / P07T / P07T001

$10.99
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RTC CMOS Battery for Dell Inspiron 11z 1120 / P07T / P07T001

RTC CMOS Battery for Dell Inspiron 11z 1120 / P07T / P07T001

$10.99
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RTC CMOS Battery for Dell Inspiron 11z 1110 / P03T / P03T001

RTC CMOS Battery for Dell Inspiron 11z 1110 / P03T / P03T001

$10.99
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RTC CMOS Battery for Dell Inspiron 10z 1120 / P07T / P07T002

RTC CMOS Battery for Dell Inspiron 10z 1120 / P07T / P07T002

$10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 10z 1120 / P07T / P07T002Dell Inspiron 10z 1120 / P07T...
RTC CMOS Battery for Dell Inspiron 17R 7720 / P15E / P15E001

RTC CMOS Battery for Dell Inspiron 17R 7720 / P15E / P15E001

$5.99
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RTC CMOS Battery for Dell Inspiron 17R 5737 / P17E / P17E002

RTC CMOS Battery for Dell Inspiron 17R 5737 / P17E / P17E002

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 17R 5737 / P17E / P17E002Dell Inspiron 17R 5737 / P17E...
RTC CMOS Battery for Dell Inspiron 17R 5721 / P17E / P17E001

RTC CMOS Battery for Dell Inspiron 17R 5721 / P17E / P17E001

$5.99
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RTC CMOS Battery for Dell Inspiron 17R 5720 / P15E / P15E001

RTC CMOS Battery for Dell Inspiron 17R 5720 / P15E / P15E001

$5.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat Fee High-quality and reliable CMOS battery for your Dell Inspiron 17R 5720 / P15E / P15E001Dell Inspiron 17R 5720 / P15E...
RTC CMOS Battery for Dell Inspiron 15R 7520 / P25F / P25F

RTC CMOS Battery for Dell Inspiron 15R 7520 / P25F / P25F

$5.99
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RTC CMOS Battery for Dell Inspiron 15R 5537 / P28F / P28F001 / P28F003

RTC CMOS Battery for Dell Inspiron 15R 5537 / 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 5537 / P28F / P28F001 / P28F003Dell Inspiron 15R 5537...

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.