Align 2S1P 7.4V 1200mAh 10C LiPo pack ideal for receiver.  It comes with a JST style connector.

Specifications:

• Max Continuous Discharge: 10C,
• Burst Discharge: 15C.
• Normal operating temperature is approx. 40-65°C (within 80% of rated discharge). Max. temperature: 80°C.
• Recommend to discharge the battery within 80% of rated discharge, keep 90% capacity when over 100 cycles, keep 85% capacity when over 150 cycles.(The cycle life and efficiency will reduce due to high current, high temperature and over-discharge)
• Output:7.4V, 1200mAh
• Dimension:70x36x13mm
• Weight:60g