Samsung SCH-3500 User Manual page 22

Use only Samsung approved chargers and adapters with
your Sprint PCS Phone. Use of any unauthorized
accessories may be dangerous and will invalidate the phone
warranty if said accessories cause damage or a defect to the
phone.
To charge the battery using the Dual-Slot Desktop Charger:
1. Plug the power cord of the charger into a wall outlet.
2. Select one of the following options:
Insert the entire phone with battery attached into the
front compartment of the charger.
Insert a single battery (alone, not attached to the
phone) into the rear compartment of the charger.
When two batteries are in the charger, the batteries charge
simultaneously. If you charge the battery while it is
attached to your Sprint PCS Phone
Indicator on the LCD screen will immediately indicate a
fully charged battery. A green LED on the charger denotes
that the battery has completed its charge cycle.
A completely discharged standard battery recharges fully in
approximately tbd hours. The extended battery recharges
in approximately tbd hours. Leaving your Sprint PCS Phone
powered on during charging, or charging batteries
simultaneously, increases charging time. Leaving the
battery in the charger once it is fully charged does not
harm the battery.
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