Common Sense RC Lectron Pro 6.6V 2000mAh 5C LiFe Receiver Flat Pack with Servo C

6.6V indicates you won't need a regulator!
This 6.6V (2-cell) 2000mAh 5C LiFe (lithium iron phosphate, LiFePO4) receiver battery supplies a fantastic combination of efficiency and benefit. Our LiFe batteries have some distinct advantages over other battery choices that make them ideal for usage in radio systems:

Voltage stays above 5V throughout your whole run, so you get more constant servo speed and torque than with NiMH batteries

Somewhat lower voltage than Lipos indicates you can safely link 6.6V (2-cell) LiFe batteries to your receiver without requiring a voltage regulator
Our 2000mAh capacity beats the 1300-1800mAh you'll find in standard flat and hump packs from a lot of other providers

Specifications

Length: 82 mm
Width: 30 mm
Height: 16 mm
Weight: 83 g
Port: JR (Universal) Servo Port