● First pull out the top cover.
● Slide your phone gently into the the battery case, and make sure the phone is well connected to the micro USB 2.0 connector of the battery case.

To charge the battery case:
● Connect the charging cable to the battery case’s USB input interface, and then connect the cable to a USB charger.
● Press the power button once to charge the phone and battery case simultaneously. The battery case is fully charged when all four LED indicators illuminated and stop flashing. Type: Backup Power Banks
Material : ABS
Cell type : Li-Polymer Battery
Special Functions: Unbreak
Connection Type: Micro USB Package weight: 0.209 kg
Product size (L x W x H): 16.0 x 7.8 x 1.2 cm / 6.29 x 3.07 x 0.47 inches
Package size (L x W x H): 22.8 x 13 x 2.8 cm / 8.96 x 5.11 x 1.10 inches Package Contents: 1 x 3800mAh Backup Power Bank for LG G4