Patent ID: 9563247
Date: 2017-02-07
CPC Classifications: G06F,H01M,H02J,Y02E

Claim:
1. A portable electronic system, comprising: a portable host, having a main battery and a connecting interface; and a portable power supply, having a backup battery, coupled to the portable host through the connecting interface, and transceiving a work state of the portable host and the portable power supply and a system power provided by the portable host through the connecting interface, wherein the portable host and the portable power supply control charge or discharge states of the main battery and the backup battery according to the work state, and the work state comprises relative state of charges (RSOC) of the main battery and the backup battery, information of whether the portable host is coupled to a power adaptor for receiving an external power, and information of whether the portable host is in a non-off mode or an off mode and whether the main battery and the backup battery synchronously charge or discharge, wherein when the portable host is not connected to the power adaptor, the main battery and the backup battery asynchronously charge or discharge, and the portable host is in the off mode, the portable host and the portable power supply make the main battery and the backup battery to discharge in alternation.