Titan Power 7.4v 6000mah Nunchuck Deans Lithium Ion Battery (V8)

Titan Power 7.4v 6000mah Nunchuck Deans Lithium Ion Battery (V8) Voltage: 7.4v Capacity: 6000mAh Connector: Deans Connector Style: Nunchuck C Rating: 16C (equivalent of a 1600mAh 30C) Is this enough? Why C rating is only half the equation. Size: 19.5mm (0.77in) thick, 132mm (5.2in) long