[JThiessen]

Somehow, over the last year, all 5 sets of my NiMh packs went bad. Not certain why, but I have a new superbrain charger which I had some difficulties getting set up correctly, and I have a new HV-4.5 system in my E-Maxx. I'm getting great performance for the first two minutes, but then it just pukes. I sent it back to Novak for testing, but it worked fine for them. So that puts me in a fix. Since I need to purchase batteries, I might as well start converting to Lipo.
I dont race - pure bashing. I have two Emaxx's and one revo. The Emaxx's are powered by HV-4.5's, and the Revo WILL have a MMM/Fiego 10L. The 4.5's limit me to a maximum of 4S, and 16.8V. What I dont know right now is, how much battery do I need, and should I go with 2 2S packs instead of a single 4S? Or should I be "safe" with the HV's and run only 3S???
I have a gift certificate to Tower, and so far have narrowed it down to: Flight Power Evo 25 3700 4S 14.8V
FlightPower Evo 25 3700 3S 11.1V
FlightPower Evo 25 5000 3S 11.1V
FlightPower Evo 30 4500 3S 11.1V
TrakPower 4900 2S 7.4V (seems to be very popular here)

Battery size isnt really an issue for me - I have to remake my battery trays anyway.

Thanks in advance for your knowledge!