3.7V lithium battery booster module DIY 5V 1A Output

3.7V lithium battery booster module DIY 5V 1A Output ? Power input: 5V1A Input Interface: micro USB interface Discharge output: 5V1A Output Interface: Standard USB interface Indicator: Charging - red full green - blue Applicable batteries: Lithium polymer battery, 18650 lithium battery, cell phone battery, 3.7v battery, single power supply, but also multi-stage parallel power supply. (Not available battery, battery, 12V rechargeable battery, NiMH battery, polymer lithium battery, lithium iron, non-series multi-purpose) Please note that the positive and negative battery input is irreversible, please check the battery positive and negative re-wiring! and other support need to be sure to charge or need a 5V1A powered device. Lithium battery protection, to prevent over-charging, let go. Quiescent current is very small, no external switch It is not necessary to input the first power supply output 5V voltage through the micro USB port to connect the battery when it is activated. When the battery is disconnected from the module, the connection time also needs to be activated again. Size: 50 * 20 * 10MM