This is the Team Losi 7.4V 5000mAh 2-Cell LiPo 20C w/EC3: 1/10 Vehicles

Features:

• Hard case battery for protection and simple fit into most 1/10-scale vehicles
• Powerful and long lasting LiPo cells
• Consistent 20C discharge capacity with 35C peaks
• Prewired with balance and Losi EC3 power connectors
• Lightweight and compact design
• Get more out of your electric RC vehicle

Specifications:
Type: LiPo
Capacity: 5000mAh
Voltage: 7.4V
Connector Type: Prewired Losi EC3 (power) and balance connector
Wire Gauge: 12G
Number of Cells: 2
Weight: 9.7 oz (275g)
Configuration: 2S
Dimensions (WxLxH): 1.7 x 5.4 x 1.0 in (43.2 x 137.2 x 25.5mm)
Application: 1/10-scale
Maximum Continuous Discharge : 20C
Maximum Burst Discharge : 35C
Charge Protection Circuitry: No
Is Assembly Required: No