CMOS Batteries

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RTC CMOS Battery for Lenovo ThinkPad L590 (Type 20Q7, 20Q8)

RTC CMOS Battery for Lenovo ThinkPad L590 (Type 20Q7, 20Q8)

£8.51
High-quality and reliable CMOS battery for your Lenovo ThinkPad L590 (Type 20Q7, 20Q8)Lenovo ThinkPad L590 (Type 20Q7, 20Q8) CMOS batteries are the highest-quality lithium-ion batteries on the market. High power...
RTC CMOS Battery for Lenovo IdeaPad Gaming 3-15ACH6

RTC CMOS Battery for Lenovo IdeaPad Gaming 3-15ACH6

£8.51
High-quality and reliable CMOS battery for your Lenovo IdeaPad Gaming 3-15ACH6Lenovo IdeaPad Gaming 3-15ACH6 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and...
RTC CMOS Battery for Lenovo ThinkPad X1 Extreme 3rd Gen (Type 20TK, 20TL)

RTC CMOS Battery for Lenovo ThinkPad X1 Extreme 3rd Gen (Type 20TK, 20TL)

£8.51
High-quality and reliable CMOS battery for your Lenovo ThinkPad X1 Extreme 3rd Gen (Type 20TK, 20TL)Lenovo ThinkPad X1 Extreme 3rd Gen (Type 20TK, 20TL) CMOS batteries are the highest-quality lithium-ion...
RTC CMOS Battery for Lenovo ThinkPad L390 Yoga (Type 20NT, 20NU)

RTC CMOS Battery for Lenovo ThinkPad L390 Yoga (Type 20NT, 20NU)

£8.51
High-quality and reliable CMOS battery for your Lenovo ThinkPad L390 Yoga (Type 20NT, 20NU)Lenovo ThinkPad L390 Yoga (Type 20NT, 20NU) CMOS batteries are the highest-quality lithium-ion batteries on the market....
RTC CMOS Battery for Lenovo ThinkPad Yoga 11e 5th Gen (Type 20LN, 20LM)

RTC CMOS Battery for Lenovo ThinkPad Yoga 11e 5th Gen (Type 20LN, 20LM)

£8.51
High-quality and reliable CMOS battery for your Lenovo ThinkPad Yoga 11e 5th Gen (Type 20LN, 20LM)Lenovo ThinkPad Yoga 11e 5th Gen (Type 20LN, 20LM) CMOS batteries are the highest-quality lithium-ion...
RTC CMOS Battery for Lenovo ThinkPad X390 Yoga

RTC CMOS Battery for Lenovo ThinkPad X390 Yoga

£8.51
High-quality and reliable CMOS battery for your Lenovo ThinkPad X390 YogaLenovo ThinkPad X390 Yoga CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and...
RTC CMOS Battery for Lenovo ThinkPad T480

RTC CMOS Battery for Lenovo ThinkPad T480

£8.51
High-quality and reliable CMOS battery for your Lenovo ThinkPad T480Lenovo ThinkPad T480 CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long service...
RTC CMOS Battery for HP ProBook 6560b

RTC CMOS Battery for HP ProBook 6560b

£8.51
High-quality and reliable CMOS battery for your HP ProBook 6560bHP ProBook 6560b CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long service...
RTC CMOS Battery for ASUS ZenBook UX303L

RTC CMOS Battery for ASUS ZenBook UX303L

£8.51
High-quality and reliable CMOS battery for your ASUS ZenBook UX303LASUS ZenBook UX303L CMOS batteries are the highest-quality lithium-ion batteries on the market. High power ensures efficient operation and long service...
RTC CMOS Battery for Razer Blade Pro 17 RZ09-02877E92 (2019)

RTC CMOS Battery for Razer Blade Pro 17 RZ09-02877E92 (2019)

£5.41
High-quality and reliable CMOS battery for your Razer Blade Pro 17 RZ09-02877E92 (2019)Razer Blade Pro 17 RZ09-02877E92 (2019) CMOS batteries are the highest-quality lithium-ion batteries on the market. High power...
RTC CMOS Battery for Razer Blade 15 Advanced RZ09 (2019)

RTC CMOS Battery for Razer Blade 15 Advanced RZ09 (2019)

£5.41
High-quality and reliable CMOS battery for your Razer Blade 15 Advanced RZ09 (2019)Razer Blade 15 Advanced RZ09 (2019) CMOS batteries are the highest-quality lithium-ion batteries on the market. High power...
RTC CMOS Battery for Dell OptiPlex 7070 Ultra Small Form Factor Desktop / D13U / D13U001

RTC CMOS Battery for Dell OptiPlex 7070 Ultra Small Form Factor Desktop / D13U / D13U001

£8.51
High-quality and reliable CMOS battery for your Dell OptiPlex 7070 Ultra Small Form Factor Desktop / D13U / D13U001Dell OptiPlex 7070 Ultra Small Form Factor Desktop / D13U / D13U001...

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.