This is the Venom 2200mah 4S 14.8v 30C Lipo Battery - Uni Plug.

Specifications:

Type: Li-Po

Capacity: 2200mAh

Voltage: 14.8V

Connector Type: Venom Plug System

Wire Gauge: 14 AWG

Weight: 7.2 oz (204.7g)

Configuration: 4S1P

Length: 4.1 in (103mm)

Width: 1.3 in (34mm)

Height: 1.1 in (27mm)

Maximum Continuous Discharge : 30C

Maximum Burst Discharge : 50C

Maximum Continuous Current : 66A