For calibrate the battery, follow the following steps.

1. Insert the power cord
2. Restart your computer;when start screen appears, press F2 key to enter the BIOS program.
3. In the BIOS program, select Exit, then select batteryAuto-Learning option.
4. Press Enter key, select batteryAuto-Learning option (the symbol of will be in front of the selection).
5. Select Save and Exit option in the Exit menu to save your settings and exit the BIOS program.
6. The system will reboot and begin the battery calibration automatically.

Do You Know?

It's a common phenomenon that a charged battery will eventually lose its charge if unused. Therefore,it may be necessary to recharge your battery after a storage period. Li-ion batteries produce the same energy as NiMH batteries but weigh approximately 35% less. Today,a rechargeable Li-ion laptop battery should be more popular than a NiMh one for its lower weight. Actual battery run-time depends upon the power demands made by the your notebook computer.The use of the monitor, the hard drive and other peripherals results in an additional drain upon the battery, effectively reducing the battery's run-time.The total run-time of your replacement battery is also heavily dependent upon the design of the laptop. To ensure maximum performance of the battery, optimize your computer's power management features. Refer to your laptop manual for further instructions.