Battery suggestion - 2/3a or 4/5a

[swell searcher]

I just picked up a TLT tuber from another member. Currently, I'm using Sub-C 7.2v 3300 mah packs with it. Unfortunately, I don't like where the battery is placed. I want to move them to the front axle but can't do to the tube frame. I'm thinking of switching to either 2/3a or 4/5a sized batteries. But I'm confused from all the searching I've done on the size and voltage.

I'm looking for more runtime than punch. I was thinking atleast a 6-cell but thinking 7-cell would work too.

Electronic wise: Hacker A30-10XL brushless motor, Mamba 25 ESC, and JR 8711 servo.

Any recommendations?

[whoodie]

Well going to a 7 cell battery is going to give you more punch, not runtime. I think that the highest capacity in 2/3a is 1500 mah, 4/5a is 2000mah. There might be higher capacities available but none that I am aware of. I like lots of runtime, thats why I run sub-c.