Nokia 3390 - Manual (Page 26)

[ 13 ]
Before you begin
3
6 Lift out the battery.
Note: When you remove and replace the battery, you must reset
the phone’s clock. See “Set up the clock” on page 68.
• Important battery information
Important: Your phone is powered by a rechargeable battery.
Use only batteries approved by Nokia and recharge your battery
only with the chargers approved by Nokia. Never use any charger
or battery which is damaged.
The battery can be charged and discharged hundreds of times but
it will eventually wear out. When the operating time (talk-time
and standby time) is noticeably shorter than normal, it is time to
buy a new battery.
The BLB-3 battery doesn't need a full discharge before recharging.