Just received the FMA/Kokam Lipo 402 and am now comparing it with the Hobbico Quick Field Charger MK II, Triton and MAHA MH-C777+ as to performance on Kokam cells.
I have focused on the KOK 2020 simply because that is what I happen to have the most of.
3 cells, A, B and C are compared. I discovered my Victor Engineering Super HiQ is still a wonderful piece of equipment, capable of charge and discharge very nicely of Lithium cells since you can program exactly voltage cut off points, voltage limits on charge as well as max current and cut off current levels. I am using it mostly as a discharge device set at 1 amp discharge to 3 volts/cell.
Chargers are Identified as T= Triton, K= Kokam, and Q = Quick Field Charger Mk II, V= Victor Engineering, M= MAHA MH-C777 Plus
All discharges are with the Victor Engineering unit except where noted. Some discharges were done with Alpha 4 on C function (low capacity set so it could be disconnected before overcharging)
All charges set at 1 amp.
A charge w/M input 3123 discharge 2335
A charge w/T input 1945 discharge 1930
A charge w/V input 1978 discharge 1990
A charge w/V input 1982 discharge 1983
A charge w/T input 2002 discharge 2003
A charge w/K discharge 2107
B charge w/Q discharge 1757
B charge w/Q discharge 1749
B charge w/Q discharge 1767
B charge w/M input 3151 discharge 2543 (Alpha 4)
B charge w/Q discharge 1754
B charge w/Q discharge 1765
C charge w/? input? discharge 2351
C charge w/T input 2079 discharge 2312 (Alpha 4)
C charge w/ input 2071 discharge 2063
C charge w/Q discharge 1750
C charge w/K discharge 2067
AB charge w/Q (in process)
Some discrepancies but I think we can see a trend here. Remember, it is much easier to nit-pic the data than it is to gather it or explain it.
Stay tuned!