KNACRO DIY 3.7V to 5V 1A Lithium Battery Board Module Board Charger USB Mini USB Lithium boost module

Applicable battery: lithium polymer batteries, 18650 lithium batteries, cell phone batteries, 3.7v battery, single power supply, but also multi-section parallel supply. Note that the battery positive and negative input can not be reversed, check the battery positive and negative re-wiring. Iphone and other support needed to identify the charge or need 5V1A powered devices. Lithium battery protection against over charging miss. Quiescent current is very small, no external switch. No output is energized for the first time will need to enter through micro USB port 5V voltage battery is connected in a state of activation. When activated if the battery is disconnected with the module, connect again when it needs to activate. Charging Input: 5V 1A Input interface: micro USB female port Discharge Output: 5V 1A Output interface: standard USB female port Dimensions: 50 * 20 * 10MM Indicator: Charging - Red full - Green Load - Blue Size:50*20*10mm?L*W*H?. Weight:6.5g.