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CMOS Batteries

    Replacement BIOS RTC CMOS battery for Lenovo 00HN933 ensures reliable operation for a long period of time. Rome Tech batteries are manufactured using the most advanced technology from h materials. During...
    $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...
    $10.99
    Replacement CR2032 / CR2032W 3V Battery for major brands.  Rome Tech RTC CMOS replacement battery designed for reliable performance and high durability, it is guaranteed to maintain 80% of its...
    $10.99
    High-quality and reliable CMOS battery for your Sony Playstation 2Sony Playstation 2 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long service...
    $10.99
    High-quality and reliable CMOS battery for your Dell Latitude 5285 2-in-1 PLEASE NOTE: ML1220 batteries are rechargeable and come pre-charged to 2.7-2.8V. The computer will recharge them to 3v after...
    $10.99
    High-quality and reliable CMOS battery for your ASUS ROG Strix GL702VASUS ROG Strix GL702V CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and...
    $10.99
    High-quality and reliable CMOS battery for your Lenovo 04X0443Lenovo 04X0443 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long service life of...
    $10.99
    High-quality and reliable CMOS battery for your Dell Latitude E5270Dell Latitude E5270 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long service...
    $10.99
    High-quality and reliable CMOS battery for your Dell Wyse 3040Dell Wyse 3040 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long service...
    $10.99
    High-quality and reliable CMOS battery for your Lenovo ThinkPad Edge E531Lenovo ThinkPad Edge E531 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and...
    $10.99
    High-quality and reliable CMOS battery for your Intel NUC mini PCs Intel NUC CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long...
    $13.99
    $10.99
    High-quality and reliable CMOS battery for Asus ZenBook UX303L UX303LA Rome Tech CMOS batteries for Asus ZenBook UX303L are the highest quality lithium-ion batteries in a small size. High power ensures...
    $13.99
    $10.99
    High-quality and reliable CMOS battery for your Lenovo ThinkPad X240Lenovo ThinkPad X240 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long service...
    $10.99
    High-quality and reliable CMOS battery for your Dell Inspiron 7386 2-in-1Dell Inspiron 7386 2-in-1 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and...
    $10.99
    High-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Carbon 7th GenLenovo ThinkPad X1 Carbon 7th Gen CMOS batteries are the highest-quality lithium-ion batteries on the market. High power...
    $10.99
    High-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Carbon 1st GenLenovo ThinkPad X1 Carbon 1st Gen CMOS batteries are the highest-quality lithium-ion batteries on the market. High power...
    $10.99
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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.

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