Sorry for the late reply, I was really busy last weekend but here are the answers.
I have been racing using them and they last the 5 min but fall off real fast. One batt even sets off the Lipo cutoff on my new ESC and that is strait off the charger but doesnt seem any slower than the others in old truck.
My charger will do single cells if I make an adapter. I used to have one but can't find it.
#1- What charger are you using? I am using a Tekin BC 112A with a 10 amp 12V power supply. Also have new Venom Pro
#2- Do you have a Discharger? If so what are you using? Bulbs or? I use a homade bulb discharger that pulls 22 amps
#3- Do you have a Discharge Tray of some kind? I have Integy Indi Activator-X, I think about 0.5 amp discharge.
Just so you know I now run 13.5 Novak Havok Brushless and about to go Lipo when I get paid next. Will be using 2000s for Slash spec until I can afford second Lipo.
Do you by any chance race at Mike's.
Zack