Checking Operational Charging (765D-9546 765L-9547)
Checking Operational Charging
To check operational charging, use a discharged battery pack or
a battery pack that has
less than 50% of the total power remaining
when installed in the computer.
Perform operational charging. If the battery status indicator
does not turn on, remove the battery pack and leave it
to return to room temperature. Reinstall the battery pack.
If the charge indicator still does not
turn on, replace the battery pack.
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.