Check out these cells:
http://www.allerc.com/product_info.p...oducts_id=1246
They are 11.1v, fairly CHEAP, SIZE is 1mm wider than li-ions, 5mm longer, and 7mm taller (taller shouldn't make a diffeance) 60 mm X 21 mm X 15 mm, WIEGHT is 36grams which is 8grams less than a li-ion set up
I know many of you are gonna look and see 450mah and run away saying that it can't supply enough current BUT these cells are rated at
10C! That's 4.5A! Now that would mean you would have a run time of about 6 min, but if you're drag racing or racing for 5min races you should be fine. You also have plenty of room for a second pack in series to get 9A of draw or longer run times.
Let me know waht you guys think
PS
http://www.allerc.com/product_info.p...oducts_id=1244
This one would be awsome if you can fit it (63mmX27mmX16mm)
thats really not much bigger but it does weigh 52grams. It is good for 11.1v, 700mah and 7A by itself!