I'm going to be running two systems on my boat- 200w at 12v feeding a lead-acid bank, and a 600w, 32v PV array feeding the LFP.
The smaller system is primarily equipment that is only used when actually sailing, e.g. autopilot, instruments.
Once I am anchored up I may want to tap in to that extra 200w to help charge the LFP bank. I'm pretty sure I can run two charge controllers in to the same bank without any problem, so the question is, which brand/model of MPPT would be easiest to re-program?
I'm aware that this is a complicated setup with some potential for disaster. I would only be doing the swap every few weeks, not every other day.
I will also have a Sterling 30A B2B charger, which will let me send power from lead-acid side to the LFP- especially useful when using the engine. So I guess I could just use that, but it's presumably not a very efficiency way of doing it.
The smaller system is primarily equipment that is only used when actually sailing, e.g. autopilot, instruments.
Once I am anchored up I may want to tap in to that extra 200w to help charge the LFP bank. I'm pretty sure I can run two charge controllers in to the same bank without any problem, so the question is, which brand/model of MPPT would be easiest to re-program?
I'm aware that this is a complicated setup with some potential for disaster. I would only be doing the swap every few weeks, not every other day.
I will also have a Sterling 30A B2B charger, which will let me send power from lead-acid side to the LFP- especially useful when using the engine. So I guess I could just use that, but it's presumably not a very efficiency way of doing it.