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Laptop Batteries Backup RTC for Notebook Computers.
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Laptop Batteries Backup RTC for Notebook Computers

Exceptional Nationwide Laptop Repair Service
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Toshiba - P000331520
Laptop RTC Battery: Sub/ Backup or Real Time Clock (RTC) Battery (not primary battery pack): Lithium Ion 3.0V 17mAh GDM710000003
$12.00
Toshiba - P000377300
Laptop RTC Battery: Sub/ Backup or Real Time Clock (RTC) Battery (not primary battery pack): Nickel Metal Hydride DC3.0V 17mAh P71035017110
$12.00
Toshiba - P000333630
Laptop RTC Battery: Sub/ Backup or Real Time Clock (RTC) Battery (not primary battery pack): Nickel Metal Hydride 2.4V 15mAh GDM710000002
$10.00
Toshiba - P000444350
Laptop RTC Battery: BUTTON N/H BATTERY
$10.00
Toshiba - P000309170
Laptop RTC Battery: Sub/ Backup or Real Time Clock (RTC) Battery (not primary battery pack): RTC Battery 2.4V 15mAh P71035016113
$12.00
Toshiba - P000268840
Laptop RTC Battery: Sub/ Backup or Real Time Clock (RTC) Battery (not primary battery pack): RTC Battery 2.4V 15mAh P71035009115
$12.00
IBM-Lenovo - 02K6572
Laptop RTC Battery: BATTERY BACKUP
$25.35
IBM-Lenovo - B-313
Laptop RTC Battery: CMOS Batteries 3 Volt Lithium Battery (Not OEM)
$4.19
Toshiba - P000397550
Laptop RTC Battery: Sub/ Backup or Real Time Clock (RTC) Battery (not primary battery pack): Lithium-Ion 3.0V 17mAh GDM710000033
$12.00
Toshiba - A000022960
Laptop RTC Battery: BATTERY LI 3V. Lithium-Ion 3V 17mAh
$10.00
Sony - 1-756-038-22
Laptop RTC Battery: BATTERY NICKEL HYDROGEN
$23.16
Sony - 1-756-666-11
Laptop RTC Battery: RTC BATTERY
$21.58
Toshiba - P000373800
Laptop RTC Battery: Sub/ Backup or Real Time Clock (RTC) Battery (not primary battery pack): Nickel Hydride 2.4V 15mAh GDM710000016
$12.00
IBM-Lenovo - 02K6502
Laptop RTC Battery: BATTERY BACKUP
$34.44
Compaq - B-301
Laptop RTC Battery: CMOS Batteries 3 Volt Lithium Battery (Not OEM)
$1.46

Can't find the right part?

In most laptops, as well as many other electronics, there is a Real Time Clock microchip that keeps track of the current date and time. The laptop RTC battery functions powers the real time clock in the same manner as a watch, and runs continuously; regardless of whether the device is powered-on or off. Laptop RTC batteries receive power directly from the notebook’s main power. When started, the device executes a process and receives the correct time and date. The small internal quartz-clock is capable of running for five to seven years and then the notebook RTC battery must be replaced.

A malfunctioning of the notebook RTC battery may also be the reason that the devices fails to boot or start. The RTC chip also contains 64 Bytes of RAM (Random Access Memory), and the internal clock requires at least 10 bytes of this space. Up to 54 bytes is used for other vital operations. The notebook's BIOS stores a great amount of information in the CMOS RAM. Should the component lose power, the computer may not be able to communicate with the hard disk or recognize the configuration of the machine. Without properly working laptop RTC battery, the computer will not run.

The installation of a new or replacement laptop RTC battery can be a difficult task. Usually the laptop RTC battery is connected directly to the laptop’s motherboard; so much of the laptop must be disassembled. It is highly recommended that you consult your notebook’s user manual before attempting to replace the laptop RTC battery.