Electrical Specifications:
Capacity: 4500mAh
Watt Hours: 50Wh
Discharge Power: 335W 
Discharge Current: 30A
Burst Current: 50A for 10 seconds
(avaliable between -6C/25F and 35C/95F with airflow)
Charge Rate: 8A Normal, 15A Rapid
Voltage Parameters:
Max voltage: 12.6V pack, 4.2V per cell
Min voltage: 7.7V pack, 2.55V per cell
 
Mechanical Specifications:
Cell: Molicel P45B
Configuration: 3S1P
Energy Density Specs:
Weight(±2g): 218g
Cell Energy Density: 241Wh/kg
Pack Energy Density: 229Wh/kg
Connectors:
Balance Plug: JST-XH-4P
Discharge Plug: XT60
Dimensions: 8cm x 4.3cm x 4cm (L x W x H)
Maximum Operating Temperature Range:
-17C/0F - 80C/175F