DIY module (do it yourself) to build a power bank, or portable charger, for smartphones and general devices USB plug-compatible.
On board we find a female USB port where to connect our devices, two pads where solder directly the lithium battery and a microUSB port that allows to charge the battery through a common smartphone charger or connecting via cable to the PC.
Charging Input: 5VDC @ 1A
Input interface: micro USB female port
Discharge Output: 5VDC @ 1A
Output interface: standard USB female port
Indicator: Charging - Red full - Green Load - Blue
Applicable battery: lithium polymer batteries, 18650 lithium batteries, cell phone batteries, 3.7v battery
Module dimensions: 50 x 20 x 10 mm