I am using a normal 2300Mah on a 120SX JetCat, I can get up to five starts as long as I have primed the fuel tubing before the first start and have not drained the fuel too low, I don't use a UAT and my fuel lines are short, so the pump does not have far to get the fuel into the turbine and my starts are very quick compared to others with the same turbine, this uses less power on each subcequent start.

Mike