Most chargers and balancers can handle 4s, just check the specs when you buy to make sure you dont get one that can't handle it. Some balancers only come with cables for 2s and 3s, again check the specs you may need to get 4s balance cables with it.
I fried an HV with my 4800 Orions. 15-20 min run times and very high amps make alot of heat. I'd get a temp guage and keep the motor below 190, the esc will shutoff/thermal before it gets cooked so I wouldnt worry about it.
Never fight an ugly man..... he has nothing to loose