CMOS battery also know as RTC battery. Any laptop computer has a CMOS battery also known as RTC battery. The CMOS battery connects directly to the laptop system board and helps to retain important BIOS settings such as system time, date, BIOS configuration while the laptop is turned off or even when the main battery is removed. The CMOS battery is rechargeable and its getting charged when the laptop is plugged into the mains. CMOS batteries come in different shapes ans sizes. On the picture below you see a basic coin cell CMOS battery. This type of batteries usually found in older laptops. This battery is removable and replaceable. Heres another type of CMOS battery. Basically, its two coin cell batteries but they are bundled together and have a cable which plugs into the system board. This battery is removable and replaceable. On the next picture you see a CMOS battery which is soldered to the system board. In order to replace this type of battery, youll have to unsolder it from the system board. CMOS BATTERY LOCATION IN A LAPTOP. In some laptops the CMOS battery could be easily accessed from the bottom, as it shown on the picture below. As an example I took a Dell Inspiron 1. In some laptops the CMOS battery is hidden under the keyboard. As an example I took a HP Compaq nc. B0cOgc.jpg' alt='Packard Bell Easynote Recovery Disk' title='Packard Bell Easynote Recovery Disk' />Heres the worst case scenario. The CMOS battery is hidden under the laptop cover. In order to access and replace the battery youll have to disassemble the whole laptop. As an example I took a Toshiba Satellite A3. Essential Grammar In Use Third Edition Pdf Gratis on this page. CMOS BATTERY RELATED PROBLEMS. Usb Driver For Nokia Xl Rm 1030 on this page. Heres the most common problem related to the CMOS battery. Each time you turn off the laptop it resets date and time back to factory defaults. When you turn the laptop back on it asks you to set date and time. If thats the case, most likely your CMOS battery is old and has to be replaced. By the way, removing the CMOS battery on most newer laptops will not clear the BIOS password. How To Repair No Power Symptom In Asus X555LD Laptop By Albert from Netherlands. Counter Strike Headshot Hack. Version 20150327 Maintained by Stephen J. Gowdy URL for Get Update http Данная база VIDPID USBустройств от. Hello, I have some troubles with my Packard Bell ZEA EasyNote. The internal HD died. I replaced it by an 1Tb Thoshiba. The notebook wont start on an.