Power Max replacement board
I asked Randy at Best converter why the 55 Amp 4-Stage Main Board Replacement did not have a temperature compensation for the board & he said it was not needed because it was a 4 stage charger. When r...
Forum Discussion
Just to be clear, don't twiddle the PowerMax's internal voltage pot (a tiny blue box with a white screw) or it will affect all the voltages and it won't do the stages any more.
I have the PM3-100 with that internal voltage pot and set the voltage to 14.8 on purpose, since I don't need the stages for my charging with it. Now it raises the battery to 14.7/8 staying at 100amps and then voltage stays at that 14.8 while amps then taper. This is what I wanted.
Randy has a table of temp adjusted voltage examples somewhere, stand by
Float voltage/temp F
14.4/-5, 14.2/15, 13.9/32, 13.7/50, 13.4/70, 13.2/85, 13.0/105, 12.8/120
I have the PM3-100 with that internal voltage pot and set the voltage to 14.8 on purpose, since I don't need the stages for my charging with it. Now it raises the battery to 14.7/8 staying at 100amps and then voltage stays at that 14.8 while amps then taper. This is what I wanted.
Randy has a table of temp adjusted voltage examples somewhere, stand by
Float voltage/temp F
14.4/-5, 14.2/15, 13.9/32, 13.7/50, 13.4/70, 13.2/85, 13.0/105, 12.8/120
