Ring |
Pin Name |
Description |
---|---|---|
inner ring | positive voltage | 5.5-9.3V DC |
outer ring | negative |
When a charger is connected to the mobile device, the device's system will start the charger recognition procedure by checking the charger voltage with 1 - 2 mA current. Identification is based on measured average voltage and waveform: 4.65 V - 5.20 V is identified as a special charger and 5.5V - 9.3 V is identified as a standard charger.
Original chargers is Nokia ACP-12.