Quote Originally Posted by Max View Post
I'm still after a set of batteries- 18v or 12v.
If I can't get any second hand ones what do you think of using Optipower 4300mAh 5S packs.
I think a pair of those should be able to supply plenty of amps to run the motors at 18v?
Those should do nicely. But ain't it a lot cheaper to buy 3 6V SLA batteries then?

But saying that I only have a Vantec 47e so can only supply 75A continuous so do you think I have to go for 12v?
Length of a fight. 5 minutes. Even taking in account you don't want to drain a Lipo pack below 35%, that means you can draw 67 amps continue for the 5 minutes.