One you did it correctly, you can see the 125 mAh LiPo Battery in all its glory, how cute c:

Chech the FUSE on the PCB for (open circuit or damage) with a multimeter.

The battery, is isn't charging after 10 minutes connected to a decent 5 V Power supply, remember that the minimun voltage is between 3.7 to 4.3 Volts at full charge.