Nokia 3390 - Manual (Page 25)

3
[ 12 ]
• The bars on the screen stop scrolling and remain constant when the
phone is charged. If you leave the phone connected to the charger, the
battery receives an additional charge.
Note: The battery will accept a "trickle charge" for an additional
two hours. See “Reference information” on page 111 for more
information on batteries.
Charging time depends on the charger and battery. For example, charging
time for the BLB-3 battery with the ACP-7U charger is about 4 hours.
Remove the battery
1 Switch off the phone.
2-4 Remove the back cover.
5 Press the two release catches outward.
The battery pops up.