RE: Unofficial "NQD" Tear into Jetboat Thread
Dragon is right, those are heavy, underpowered batteries. You need to switch to Lipo's. Personally I think 3s (11.1v) is better than 2s (7.4v) because it's easier on the motor and more efficient, not to mention faster (with the same motor). If you get a good quality balancing charger then you needn't worry about lipo's any more than nicads or nimh. Just follow the instructions, and you won't have any problems.