Patent ID: 9461497
Filing Date: 2016-10-04
CPC Classification: H02J

Claim Text:
1. A charge device coupling to an external device, comprising: a connection port configured to couple to the external device and comprising a first pin and a second pin; a battery unit having a battery voltage; a conversion unit converting the battery voltage to provide power to the external device; and a detection control unit directing the first and second pins to couple to a first charge unit when the battery voltage is higher than a threshold value, and directing the first and second pins to couple to a second charge unit when the battery voltage is not higher than the threshold value; wherein when the first and second pins are coupled to the first charge unit, the connection port outputs a first charge current to the external device, when the first and second pins are coupled to the second charge unit, the connection port outputs a second charge current to the external device, and the first charge current is greater than the second charge current.