2xUSB 5V 2A Power Bank Module - 1x Micro USB - with Battery Charging System

The Power Bank module is used to build a portable power supply that allows you to charge phones / tablets, etc., just connect a Li-Po, Li-On battery to the B + and B- pins and you can start charging. Technical Data input voltage: 5V 2A output voltage: USB1 - 5V 1A and USB2 - 5V 2A (3A in total) automatic disconnection of the power supply below 3V battery, which guarantees long battery life Input connector: micro USB socket output connector: 2 USB type A sockets, 1x Micro USB Max. voltage on pins B + and B- is 4.3V - that is Li-Pol 1S the ability to connect packages in parallel. dimensions: 69x35x11mm