This is the 4S 14.8V 3600mAh 50C LiPo Fly Battery from Venom-Group.

FEATURES
"A" grade matched cells
Venom 2.0 Uni Plug system with XT60 plug attached
Dean's and EC3 plugs included and attach to XT60 plug
5C fast charge capable
INCLUDES
4S 18.5V 3600mAh 50C LiPo Fly Battery with Balance Connector
Venom 2.0 Uni PLug System

REQUIREMENTS
LiPo Compatible Charger
LiPo Charging Bag
SPECIFICATIONS
Dimensions: 5 x 1.4 x 1.4" (127 x 37 x 35mm)
Weight: 12.4oz (354g)
Capacity: 3600mAh
Continuous Discharge: 50C (180A)
Minimum Discharge Voltage per Pack: 12V
Max Burst Rate: 80C (288A)
Max Volts Per Pack: 16.8V
Suggested Charge: 1C (3.6A)
Max Charge: 5C (18A)
Watt Hours: 53.28
Energy Density: 151.8 WH/KG
Discharge Wire Gauge: 10AWG