CMOS Batteries

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Replacement CMOS Battery - 3V CR2032
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Replacement CMOS Battery - 3V CR2032

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeReplacement CR2032 3V Battery for major brands.  Rome Tech RTC CMOS replacement battery designed for reliable performance and high durability, it...
RTC CMOS Battery for Dell Wyse 3040

RTC CMOS Battery for Dell Wyse 3040

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Dell Wyse 3040Dell Wyse 3040 CMOS batteries are the highest-quality lithium-ion batteries on the...
RTC CMOS Battery for Lenovo ThinkPad X1 Yoga 3rd Gen (Type 20LD, 20LE, 20LF, 20LG)

RTC CMOS Battery for Lenovo ThinkPad X1 Yoga 3rd Gen (Type 20LD, 20LE, 20LF, 20LG)

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Yoga 3rd Gen (Type 20LD, 20LE, 20LF, 20LG)Lenovo ThinkPad X1 Yoga...
RTC CMOS Battery for Lenovo ThinkPad X1 Carbon 7th Gen

RTC CMOS Battery for Lenovo ThinkPad X1 Carbon 7th Gen

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Carbon 7th GenLenovo ThinkPad X1 Carbon 7th Gen CMOS batteries are...
RTC CMOS Battery for HP ProBook 450 G6

RTC CMOS Battery for HP ProBook 450 G6

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your HP ProBook 450 G6 HP ProBook 450 G6 CMOS batteries are the highest-quality lithium-ion...
RTC CMOS Battery for Razer Blade 15 Advanced (2018)

RTC CMOS Battery for Razer Blade 15 Advanced (2018)

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Razer Blade 15 Advanced (2018)Razer Blade 15 Advanced (2018) CMOS batteries are the highest-quality...
RTC CMOS Battery for ASUS ROG Strix Z390-I ITX Motherboard

RTC CMOS Battery for ASUS ROG Strix Z390-I ITX Motherboard

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your ASUS ROG Strix Z390-I ITX MotherboardASUS ROG Strix Z390-I ITX Motherboard CMOS batteries are...
RTC CMOS Battery for HP ProBook 450 G7

RTC CMOS Battery for HP ProBook 450 G7

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your HP ProBook 450 G7HP ProBook 450 G7 CMOS batteries are the highest-quality lithium-ion batteries...
RTC CMOS Battery for Lenovo ThinkPad L13 Yoga Gen 2 (Type 20VL, 20VK)

RTC CMOS Battery for Lenovo ThinkPad L13 Yoga Gen 2 (Type 20VL, 20VK)

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad L13 Yoga Gen 2 (Type 20VL, 20VK)Lenovo ThinkPad L13 Yoga Gen 2...
RTC CMOS Battery for Lenovo ThinkPad P72 (Type 20MB, 20MC)

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

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Lenovo ThinkPad P72 (Type 20MB, 20MC)Lenovo ThinkPad P72 (Type 20MB, 20MC) CMOS batteries are...
RTC CMOS Battery for Medion Erazer P7647

RTC CMOS Battery for HP Spectre x360 15 Series

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your HP Spectre x360 15 Series Rome Tech CMOS batteries for HP Spectre x360 15...
RTC CMOS Battery for Zotac Zbox CI325 nano mini PC

RTC CMOS Battery for Zotac Zbox CI325 nano mini PC

$9.99 $10.99
Limited Time International Shipping Promo ̶$̶1̶3̶.̶9̶9̶ - $5 Flat FeeHigh-quality and reliable CMOS battery for your Zotac Zbox CI325 nano mini PC Zotac Zbox CI325 nano mini PC CMOS batteries...

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.