CMOS Batteries

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RTC CMOS Battery for Dell PowerEdge XR4000r

RTC CMOS Battery for Dell PowerEdge XR4000r

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge XR4000rDell PowerEdge XR4000r CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Dell PowerEdge XE8545

RTC CMOS Battery for Dell PowerEdge XE8545

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge XE8545Dell PowerEdge XE8545 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Dell PowerEdge XE7440

RTC CMOS Battery for Dell PowerEdge XE7440

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge XE7440Dell PowerEdge XE7440 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Dell PowerEdge XE7420

RTC CMOS Battery for Dell PowerEdge XE7420

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge XE7420Dell PowerEdge XE7420 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Dell PowerEdge XE7100

RTC CMOS Battery for Dell PowerEdge XE7100

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge XE7100Dell PowerEdge XE7100 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Dell PowerEdge XE2420

RTC CMOS Battery for Dell PowerEdge XE2420

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge XE2420Dell PowerEdge XE2420 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Dell PowerEdge T710

RTC CMOS Battery for Dell PowerEdge T710

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge T710Dell PowerEdge T710 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Dell PowerEdge T550

RTC CMOS Battery for Dell PowerEdge T550

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge T550Dell PowerEdge T550 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Dell PowerEdge T630

RTC CMOS Battery for Dell PowerEdge T630

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge T630Dell PowerEdge T630 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Dell PowerEdge T620

RTC CMOS Battery for Dell PowerEdge T620

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge T620Dell PowerEdge T620 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Dell PowerEdge T610

RTC CMOS Battery for Dell PowerEdge T610

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge T610Dell PowerEdge T610 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Dell PowerEdge T605

RTC CMOS Battery for Dell PowerEdge T605

$6.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell PowerEdge T605Dell PowerEdge T605 CMOS batteries are the highest-quality lithium-ion batteries on 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.