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  1. philos70

    alternator - Renogy dc/dc charger/mppt - 100 ah battery - Goal Zero 1500x

    I've considered that, and may do it. The camper is new and I'm going to give the GZ a chance. I'll test drive the scotched together system first...
  2. philos70

    alternator - Renogy dc/dc charger/mppt - 100 ah battery - Goal Zero 1500x

    That's a good idea. That may end up being the best solution!!!
  3. philos70

    alternator - Renogy dc/dc charger/mppt - 100 ah battery - Goal Zero 1500x

    I certainly don't intend to use the output ports on the GZ to do anything other than to run accessories. Charging using the alternator to renogy mppt uses a 4 AWG cable and can be up to 50 amps. The cigarette plug is not used. Using the REnogy MPPT has been demonstrated to work charging a...
  4. philos70

    alternator - Renogy dc/dc charger/mppt - 100 ah battery - Goal Zero 1500x

    I'm not schooled enough to address your well-made points. I think I'll test the system to see if it works. The worst case scenario, which isn't bad actually, is just to put one wire to the GZ and one wire to the new battery from the output terminal on the Renogy with switches on both lines...
  5. philos70

    alternator - Renogy dc/dc charger/mppt - 100 ah battery - Goal Zero 1500x

    Someone from another forum just posted this. ________________________________________ if this works, you are effectively. proving the yeti link in vehicle mode is pointless. From what I see online, a minimum of 15v input is necessary to the MPPT controller of the Yeti. I'm not sure...
  6. philos70

    alternator - Renogy dc/dc charger/mppt - 100 ah battery - Goal Zero 1500x

    There is an excellent video that demonstrates how the Renogy unit can connect two LiFePo4 batteries, or an AGM for that matter. What I want to do is put the GZ downstream of the new camper battery. I'm hoping that by plugging the new LiFePO4 battery into the GZ high input port (12-50 volt...
  7. philos70

    alternator - Renogy dc/dc charger/mppt - 100 ah battery - Goal Zero 1500x

    BATTERY DETAILS Cell chemistry: Li-ion NMC Pack capacity: 1516Wh (10.8V, 140.4Ah) Single Cell Equivalent Capacity: 421Ah @ 3.6V Pack Lithium Content: 126g Lifecycles: 500 Cycles to 80% capacity (Discharge rate: 1C, Full charge/discharge, Temp: 25C) Shelf-life: Charge every...
  8. philos70

    alternator - Renogy dc/dc charger/mppt - 100 ah battery - Goal Zero 1500x

    Yes, for a couple hours. The only info I've found suggested using car chargers which are limited to 120 watts input. The GZ is capable of 600 watts, or 50 amps at 12 volts of input. Here's a graphic of what I'd like to do (without the solar panels for now). Do I need something to control...
  9. philos70

    alternator - Renogy dc/dc charger/mppt - 100 ah battery - Goal Zero 1500x

    Can I connect a 100ah LiFePo4 battery to the Goal Zero Yeti 1500x in parallel without needing anything but a fuse/cb between the two? I'm looking to double my battery capacity without getting rid of the GZ that came with my Scout camper. The GZ can handle 680 watts or 12 v and 50 amps input. I...
  10. philos70

    Renogy DC-DC Battery Charger/MPPT or Victron DC-DC Charger to use alternator to charge Goal Zero 1500x?

    I've looked at videos saying both approaches work to charge a Goal Zero 1500x using the alternator. The camper has a 190 watt solar panel, but I want the addition of alternator charging. The GZ has an upper charging limit of 50 volts, 50 amps, and 600 watts. It looks like the advantage of...
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