LiFePO4 Converter Change?

otrfun wrote:

time2roll wrote:

StirCrazy wrote:

pianotuna wrote:
power max is top of the line.

I don't know about that.. I have been looking at it and I see a lot of mixed reviews and their power factor is commonly referred to as being bad. I do like the fact that you can fine tune the top voltage but I wish you could tune the 2nd stage independently.

With some solar controllers you can program everything. Why hasn't anyone done this for converters yet?

Steve

Do you have one? I don't think the adjustment holds for the multistage. I read PM is either fixed voltage adjustable or preset multistage.

We just purchased a new 75a Powermax. The unit can be switched to operate as a single-stage charger (i.e., power supply) or 3-stage charger.

There's a very small pot that adjusts voltage for *both* the single-stage mode and the *bulk* stage when in 3-stage mode. It can be adjusted from 13.0 to 16.5v. Comes from Powermax preset for 14.6v. Haven't confirmed it yet, but I believe the float (13.2v) and absorption (13.6v) voltages remain fixed and are not changed by this pot.

I was reading about that I believe the manual I was reading on line said it lowers the secondary voltage also and will work in single dual or three stage, just has to be adjusted in single and the amount the other stages change are directly related to the adjustment of the 1st stage. I want three dials and to be able to adjust them independently. the only bad thing I have seen about power max has to do with their Power factor, apparently it isn't very good, so they use more power to output the same as say PD