Mimgo Store 30000mAh USB 2 Port Power Bank Case 8x18650 Battery Charger Box DIY For Phone (Blue) LED indicator, showing charging status and on/off status. Battery: 8 x 18650 Li-ion battery(not included) Double USB output: DC 5V 1.0A or DC 5V 2.1A Environmentally friendly and economic efficiency. 2 LED light reminds stock energy. USB output: charge mobile phone, MP3, MP4, tablet