CMOS Batteries

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RTC CMOS Battery for Dell Alienware Alpha & Alienware Steam Machine

RTC CMOS Battery for Dell Alienware Alpha & Alienware Steam Machine

$9.99 $10.99
High-quality and reliable CMOS battery for your Dell Alienware Alpha & Alienware Steam MachineDell Alienware Alpha & Alienware Steam Machine CMOS batteries are the highest-quality lithium-ion batteries on the market....
RTC CMOS Battery for Lenovo ThinkPad P72 (Type 20MB, 20MC)

RTC CMOS Battery for Lenovo ThinkPad P72 (Type 20MB, 20MC)

$9.99 $10.99
High-quality and reliable CMOS battery for your Lenovo ThinkPad P72 (Type 20MB, 20MC)Lenovo ThinkPad P72 (Type 20MB, 20MC) CMOS batteries are the highest-quality lithium-ion batteries on the market. High power...
RTC CMOS Battery for Lenovo ThinkPad X1 Extreme 1-st

RTC CMOS Battery for Lenovo ThinkPad X1 Extreme 1-st

$9.99 $10.99
High-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Extreme 1-stLenovo ThinkPad X1 Extreme 1-st CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient...
RTC CMOS Battery for Dell XPS 13 9343

RTC CMOS Battery for Dell XPS 13 9343

$9.99 $10.99
High-quality and reliable CMOS battery for your Dell XPS 13 9343Dell XPS 13 9343 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and...
RTC CMOS Battery for Medion Erazer P7647

RTC CMOS Battery for HP Spectre x360 15 Series

$9.99 $10.99
High-quality and reliable CMOS battery for your HP Spectre x360 15 Series Rome Tech CMOS batteries for HP Spectre x360 15 Series are the highest-quality lithium-ion batteries on the market. High...
RTC CMOS Battery for Lenovo ThinkPad P1 Gen 2 (Type 20QT, 20QU)

RTC CMOS Battery for Lenovo ThinkPad P1 Gen 2 (Type 20QT, 20QU)

$9.99 $10.99
High-quality and reliable CMOS battery for your Lenovo ThinkPad P1 Gen 2 (Type 20QT, 20QU)Lenovo ThinkPad P1 Gen 2 (Type 20QT, 20QU) CMOS batteries are the highest-quality lithium-ion batteries on...
RTC CMOS Battery for Lenovo ThinkPad X1 Yoga 1st Gen (Type 20FQ, 20FR)

RTC CMOS Battery for Lenovo ThinkPad X1 Yoga 1st Gen (Type 20FQ, 20FR)

$9.99 $10.99
High-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Yoga 1st Gen (Type 20FQ, 20FR)Lenovo ThinkPad X1 Yoga 1st Gen (Type 20FQ, 20FR) CMOS batteries are the highest-quality lithium-ion...
RTC CMOS Battery for Lenovo ThinkPad X1 Yoga 2nd Gen (Type 20JD, 20JE, 20JF, 20JG)

RTC CMOS Battery for Lenovo ThinkPad X1 Yoga 2nd Gen (Type 20JD, 20JE, 20JF, 20JG)

$9.99 $10.99
High-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Yoga 2nd Gen (Type 20JD, 20JE, 20JF, 20JG)Lenovo ThinkPad X1 Yoga 2nd Gen (Type 20JD, 20JE, 20JF, 20JG) CMOS batteries...
RTC CMOS Battery for Dell Latitude 5285 2-in-1

RTC CMOS Battery for Dell Latitude 5285 2-in-1

$9.99 $10.99
High-quality and reliable CMOS battery for your Dell Latitude 5285 2-in-1Dell Latitude 5285 2-in-1 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and...
RTC CMOS Battery for Zotac Zbox CI325 nano mini PC

RTC CMOS Battery for Zotac Zbox CI325 nano mini PC

$9.99 $10.99
High-quality and reliable CMOS battery for your Zotac Zbox CI325 nano mini PC Zotac Zbox CI325 nano mini PC CMOS batteries are the highest-quality lithium-ion batteries on the market. High...
RTC CMOS Battery for HP EliteBook Folio 9480m

RTC CMOS Battery for HP EliteBook Folio 9480m

$9.99 $10.99
High-quality and reliable CMOS battery for your HP EliteBook Folio 9480mHP EliteBook Folio 9480m CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and...
RTC CMOS Battery for Dell Latitude 5290 2-in-1

RTC CMOS Battery for Dell Latitude 5290 2-in-1

$9.99 $10.99
High-quality and reliable CMOS battery for your Dell Latitude 5290 2-in-1Dell Latitude 5290 2-in-1 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and...

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.