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    1. · Registered
      2018 2500 159-HR
      Joined
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      449 Posts
      I am doing a camper build and would like to charge batteries while I'm driving (in addition to solar)...
      I use the Kisae DMT-1250 for that purpose, but make liberal use of the search function on this forum and you'll find ample options. I'm also using the AIMS Power 1200W switching inverter for what little AC that we actually use, and a MeanWell 12v DC power supply for when we're on shore power. I wired in a DPDT three-way switch to manually select between the two 100 AH Battle Born house batteries, disconnect the DC fuse block, or to turn on the MeanWell to power DC (assuming shore power is plugged in).

      I'm not really sure what you meant by auxiliary switches. I'm feeding the DMT-1250 with 4 AWG wire spliced from where I cut that black and yellow connector (pictured by pjoconnor2001 above) out of the way. Heck, I should take some pictures to post in the electrical forum...
       
    2. · Registered
      2017 136” HR
      Joined
      ·
      937 Posts
      I use the Kisae DMT-1250 for that purpose, but make liberal use of the search function on this forum and you'll find ample options. I'm also using the AIMS Power 1200W switching inverter for what little AC that we actually use, and a MeanWell 12v DC power supply for when we're on shore power. I wired in a DPDT three-way switch to manually select between the two 100 AH Battle Born house batteries, disconnect the DC fuse block, or to turn on the MeanWell to power DC (assuming shore power is plugged in).

      I'm not really sure what you meant by auxiliary switches. I'm feeding the DMT-1250 with 4 AWG wire spliced from where I cut that black and yellow connector (pictured by pjoconnor2001 above) out of the way. Heck, I should take some pictures to post in the electrical forum...
      I have been eying that Kisae DMT-1250 for a while now. I’ll have one Battleborn to start and might or might not add a 2nd one down the road.
      How long have you been using the Kisae and are you happy with it? How much solar do you have?
       
    1. · Registered
      2018 2500 159-HR
      Joined
      ·
      449 Posts
      I second the DMT-1250 or a DMT-1230, especially after reading some peoples' issues with the Renogy (which also needs an ignition input). I've built out a system with two Battle Born 100 Ah batteries charging through the DMT-1250 with just with the alternator (for now no solar), and am using an AIMS Power 1200W switching inverter which picks up the shore AC power regardless if it's connected to DC or not.

      Previously I didn't have an AC charger, but I did have a 340W 12v DC power supply with a shore power relay connected to my two DC fuse boxes (fore and aft). After consulting with Battle Born and reading this article, my PowerMax PM3-45LK arrives in 4 days. This should simplify my current Rube Goldberg wiring scheme, supplying the DC loads and/or charging the batteries when on shore AC power.

      Considering my use cases, we do short stays after relatively long drives, so I assumed the alternator charging was sufficient. In reality I am still doing lots of tinkering and frequently sleep in the van in my driveway (to avoid either heat or noise - I'm an early riser but my family isn't), so the AC charger seems a worthwhile investment.

      Also I picked up a 12v DC laptop charger for $25 from Amazon. It gets good ratings but I haven't used it yet. (I figured DC-DC charging should be more efficient; not sure how quickly a 12v supply will charge an 18v laptop, but we'll see).
       
    1. · Registered
      2018 2500 159-HR
      Joined
      ·
      449 Posts
      My thought was extension cord to lugs screwed into outlets, and as @mjm6 indicates you can use a junction somewhere if necessary, or daisy-chain the outlets. Look at heat ratings for the cord, not just the wire gauge. For the size inverter you have I'd think 14 AWG would be fine for reasonable lengths of 15A circuitry, but no harm in 12 AWG of course.

      Full disclosure: I used 12 AWG romex hardwired to my 1200W inverter output; input is a ~12" 14 AWG plug into an onboard shore-power outlet (12 AWG stranded).
       
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