Description For 3.7V battery charge Linear charging current 500mA Use microUSB jack, please be aware to plug in and out gentle. On board XH2.54 jack, and standard 2.54mm pin holes On board status LED: Blink: USB input power connected, no battery connected On: Charging Off: Charged, or can not charge due to wrong connection Compact size Simple peripheral circuits, schematic please see on this page.
