Quote:
Originally Posted by freebeard
Do you know if Paul's controller is amenable to mixing battery types, and differing voltage inputs?
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Paul's controller is battery agnostic. If the battery pack supplies current, Paul's controller will use it. There is a voltage range (that I can't locate right now). To drive 650V I believe a few capacitors had to be changed out? Not sure on the low end - about 48V, perhaps?
I think you would need to be careful mixing battery chemistries for different reasons. The charge curves are, I believe, different. So the charger used for a NiMH pack would expect the charge curve to rise at different points than a LiFePO4 cell. I expect the charge to terminate using different rules as well.
That assumes that the packs are in parallel. If they are in series, I think you would need separate chargers as well ... but that's a guess.
In series, you would be limited to the max current of the lowest-rated pack and the amp-hours of the lowest capacity pack.