Nokia 6310i Quick Manual page 117

The input voltage range is from 11 to 32V DC, negative grounding. Avoid
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prolonged charging with the Rapid Cigarette Lighter Charger (LCH-9) when
the car engine is not running; this may cause the battery of your car to
drain. In some cars the cigarette lighter plug is not provided with electricity
if the ignition is not switched on.
Compact Desktop Charging Stand (DCH-8)
Compatible with all battery options, the Compact
Desktop Charging Stand can be used with the
Standard Travel Charger or the Rapid Travel
Charger (ACP-12).
The Compact Desktop Charging Stand provides
mounting for the phone. Plug the charger into a wall outlet and connect
the connector to the back of the Compact Desktop Charging Stand. Place
your phone in the stand to begin battery charging.
When the phone is charging, no lights are displayed on the stand (unless
a spare battery is being charged, too); check the charging status of the
phone battery on your phone's screen.
A red light indicates that the battery is charging; a green light indicates
that the battery is charged to at least 80% of its capacity. The phone has
the built-in intelligence to maintain the battery, so there is no need for a
discharge feature on the stand.
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