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Battery Option -
3.7 V
1 - 20 Ah
battery for mobile phone,
and tablet PC
Battery Option -
3.7 V 7.4 V 3.7 V
1 - 20 Ah0 - 1000 mAh
battery for bluetooth product
     
Battery Option -
3.7 V 7.4 V 11.2 V
1 - 20 Ah
    
battery for model airplane / car,
and UAV
   
Battery Option -
4000 / 8000 MAh
input - 5V / 1A, output - 5V / 1A/2A
Power Bank