Features: AA rechargeable lithium battery consists of LIUTHION 1340 battery and battery management board. Plug in the phone charger (5V) with the USB cable in the charging box when charging. The LED in the battery positive twinkles when charging and the LED stays on when fully charged after charging for about 2.5H.
The charging current is controlled by the internal management circuit of the battery (340MA). The output is constant voltage 1.5VDC. The maximum discharge current is 1.5A (normally 1A). After the battery is out, it will automatically protect itself so there is no voltage output. The battery needs to be put into the charging case and charged again.