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

6.6V implies you won't require a regulator!
This 6.6V (2-cell) 2000mAh 5C LiFe (lithium iron phosphate, LiFePO4) receiver battery provides a terrific mix of efficiency and convenience. Our LiFe batteries have some special benefits 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 consistent servo speed and torque than with NiMH batteries

Slightly lower voltage than Lipos implies you can securely connect 6.6V (2-cell) LiFe batteries to your receiver without needing a voltage regulator
Our 2000mAh capability beats the 1300-1800mAh you'll find in basic flat and hump packs from many other providers

Requirements
Connector: JR (Universal) Servo Connector

Dimensions:
Length: 56mm (2.20 in.)
Width: 32mm (1.26 in.)
Height: 28mm (1.10 in.)
Weight: 91g (3.21 oz)