Using morningstar prostar 30 controllers in ways for which they were never intended.
I made this 240 volt AC charger so it would mimic the output of a "12 volt solar panel" as closely as possible with 21 to 23 OCV and 18 to 16 volts working load.
I have not tried using this setup to charge a very low battery yet.
The soon to be solar inverter hybrid generator has had an AGM battery and 1000w Kisae pure sine inverter installed for a year or 2 now, so I know that all works great, but have to charge the battery with an external charger when it gets low.
Since the Morningstar does not have an AGM setting I placed the selector on "sealed".
Is "sealed" the best option for AGM?
Also when this machine is not in use I pop the main circuit breaker, cutting off battery power to the generator, inverter and the battery charge/discharge terminals to the Morningstar. But I leave the voltage "sensing" wires connected. The sensitive amp meter setting on my fluke 87 multi meter popped its fuse so I could not check if there was any tiny amp draw.
If I am going to let it sit for a few months should I also disconnect the Morningstar's sense wires too?
The next application I am considering is using a Morningstar prostar 30 to charge my LiFePO4 batteries, a 4 cell series bank of AMP20 cells using no more than a few hundred watts of solar.
I am thinking the "sealed" setting might be best for this too?
Has any one tried this?
I did not see it any where in the instruction manual and wondered if the Morningstar acts as a charge limiter by any chance? Would I be able to connect it to say a running vehicle electrical system to steal a charge or would that just over load the Morningstar and cause it to shutdown?
My 60 amp hour LiFePO4 battery gets very hungry when it runs low and likes to drain every extra amp of power a vehicle alternator can produce, causing the belt to squeal and the alternator to get hot. I would like to limit the charge with something other than a charge limiting resistor, unless I have to.
The LiFePO4 battery I made will draw 40 to 60 amps easy off a vehicle alternator and the vehicle alternators don't seem to like this very much.
Solar hybrid gasoline generator, 7kw gas, 180 watts of solar, Morningstar 15 amp MPPT, group 31 AGM, 900 watt kisae inverter.
Solar roof top GMC suburban, a normal 3/4 ton suburban with 180 watts of panels on the roof and 10 amp genasun MPPT, 2000w samlex pure sine wave inverter, 12v gast and ARB air compressors.