Lenovo Notebook Computer User Guide
indicator located in front of the computer.
Hint: No matter whether the battery is installed in the computer or not, it always performs self‐discharge. (About 1% a day)
If the battery has not been used for a long time, it might have no power because of self‐discharge. This is the inherent feature of lithium‐ion battery. You should use the external power source or recharge the battery.
If you still cannot turn on the computer (the battery indicator also doesn’t flash), it means the battery is in self‐protection state. Charge the battery for 2~4 hours to activate the battery. Turn on the computer again when the battery indicator flashes.
Hint: If you do not plan on using the computer for a long time, remove the battery pack and store it separately.
Note: Charge and discharge the battery at least once every three months to avoid the battery malfunctions by over‐discharge.
1.3.3Battery initialization
After using the battery for a long time, the battery’s operating time is much shorter than the first use. The reason is that the lithium‐ion battery memory is affected. Complete the battery initialization process to erase the affected part of the battery memory.
The battery initialization is the process of fully‐charging the battery, fully‐discharging the battery and fully‐charging it again. Complete the following steps to perform the battery initialization process:
¾Make sure the computer has been turned off; connect the computer to an external power source to charge the battery.
¾Turn on the computer when the battery is fully‐charged. Press
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