Titan Power 11.1v 3000mah Stick Deans Lithium Ion Battery (V8)

Titan Power 11.1v 3000mah Stick Deans Lithium Ion Battery (V8) Voltage: 11.1v Capacity: 3000mAh Connector: Deans Connector Style: Stick 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, 197mm (7.76in) long