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  1. Promaster General Discussion Forum
    I’ve been reading up on Van electrical systems, and it is more subtle and interesting than I initially would have guessed. Lithium batteries are appealing for multiple reasons (not cost!) But I see there is a potential problem with their low resistance resulting in overheating of the alternator...
  2. Members Personal Conversions
    Hey,i have a renogy 50-50 dc charger that i bought and installed a year ago.At first it was pulling 50amps from the starter battery but was tripping the 80ah fuse all the time.After swaping the braker that was all sorted but now everytime the fan(cooling fan i guess?) Comes on the charging from...
  3. Electronics
    Hi! I'm curious if this has been done, apologies if so - I can't find anything! I would like to repurpose/upgrade my alternator to only charge my house batteries - by installing a Wakespeed WS500, I'm thinking I could configurably always charge my lithium at the 'maximum' rate, and use a...
  4. Engine and Technical Discussion
    Code P0621, defined by my code readers as "Generator Lamp / Terminal control circuit", or "Alternator D+ Signal" Battery Lamp illuminates fairly often. Stuff I did/checked If I clear the code (with engine off, key in MAR) it returns immediately. I used contact cleaner on and reseated the 2 pin...
  5. Electronics
    Small question for any of you running dc to dc chargers by Renogy does the Promaster have a “smart alternator“ , needing the D+ wire connection? I see noted in diagrams for optional control wire from charge controller to alternator to tell alternator to boost its output. Has anyone connected...
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