Charge The Battery In The Dc-8 Device - Nokia Extra Power DC-8 User Manual

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battery compartment with the positive end (+) first, and close the battery
cover by turning it in the opposite direction.
During long periods where the DC-8 device is not used, remove the
battery to prevent damage from battery leakage.

Charge the battery in the DC-8 device

If the battery in the DC-8 device is rechargeable, connect the charger to
a power source, and connect the charger cable (2) to the 2.0 mm charger
connector (3). The device first checks whether the battery is compatible,
and the indicator light (4) flashes green about every 2 seconds. If the
battery is compatible, the device starts to charge it. During charging, the
indicator light flashes green about every 1 second. It may take a while
before charging starts. If charging does not start, disconnect the charger,
plug it in again, and retry. When the battery is fully charged, the green
indicator light stops flashing. The charging time depends on the battery
capacity and the used charger.