I have several chargers I have gotten over the years, all for NIM and NICAD, I know squat about the newer batteries or chargers for them. The problem I have been running into is I have gone from batteries like the 4.8 800mah to 6 volt 4500mah and my chargers don't go over 2800mah. This has turned into a pain when charging big packs and I can no longer afford a new charger. This is one of those think ahead problems but when I started flying 1100mah was a big battery. Whoed a thunk??