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This power adapter can convert 12V DC Power (Range 9V ~ 15.5V) power to 20V DC power. Maximum output up to 120W
Suitable to fully charge with 12V the following models PS1, PS5, PS6 (old model), PS7, PS8, PS9, PS10
The output side has a 7,9 x 0,9 mm male connector like this:
CAUTION: This adapter's input polarity and output polarity are both positive, which means inside should be positive voltage, outside should be ground.