PRO TRAK.
It is the only charger is small yet can match, can temp charge, can tranform into a phone when you need one. Very Important
Serious. novak mill, integya 16x9, orion d68, eargle acdc, Yokomo (new charger), pro trak, turbo BL. etc.
Look for a charger that discharge up to 20amp
a charger that can charge from one cell to eight.
can cycle your batterys.
Got step down volt.
I think the eargle ACDC is a very good buy.