Nuprol 550mah 7.4v LiPo AEP Battery

Type: LiPo - Lithium Polymer
Voltage: 7.4 v
Capacity: 550 mAh
Connector: AEP
Cell Count: 2
Continuous Rate: 20 C at 11 A
Burst Rate: 40 C at 22 A
Configuration: Micro
Dimensions: 14 x 25 x 82 mm

Capacity - LiPo Batteries have an excellent Capacity to Size ratio

JST-XH Balance Leads
1
High Quality Silicone Leads
State of Charge ≥60%