No, not a victron video. It's been a while, lower budget flic.
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DC-DC Charge install Reflection 29RS
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First time out with the new Renogy DC-DC charger and I am very happy with the install. Started out with about 70% batteries and had full charge when we stopped after the first 2 hours of our trip, solar was on as well but this was very early in the morning. I did have it switch to only 1/2 output and seen 10 amps at times on the Victron app. I did not test at full capacity but will try in the future. This is a great way to get charge to the batteries while traveling, especially in non sunny conditions if you have solar. The 12 v fridge was running the whole trip and the batteries were at 100% apon arrival.
BrianBrian & Michelle
2018 Reflection 29RS
2022 Chevy 3500HD
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Country Campers Hey Brian,
What did you run (ground) the negative on the INPUT side of your renogy dc to dc charger to? Best I can tell is the 7-pin ground runs to the same chassis ground as everything else in my system so I assume that is fine as well.
Just want to make sure I'm not doing something dumb by running the INPUT negative right to the chassis ground in my camper... Since (almost) everyone that wires these directly to TV run heavy gauge wire to the positive and negative TV terminals.
Thanks,
-Mike
2021 Reflection 150 260RD
2022 Chevy 2500
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Originally posted by netazure View PostCountry Campers Hey Brian,
What did you run (ground) the negative on the INPUT side of your renogy dc to dc charger to? Best I can tell is the 7-pin ground runs to the same chassis ground as everything else in my system so I assume that is fine as well.
Just want to make sure I'm not doing something dumb by running the INPUT negative right to the chassis ground in my camper... Since (almost) everyone that wires these directly to TV run heavy gauge wire to the positive and negative TV terminals.
Thanks,
-Mike
To answer your question, I tied the input and output negatives together at the batteries, which is only a foot away from the DC-DC.Ottertail, Minnesota
2022 Imagine 2500RL VIN 573TE3029N6637046
2022 Ford F-150 Lariat, SuperCrew, long box, max tow
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Thanks Alex & Brian!
Interesting about the long trip and it not charging the entire time. I do have solar as well (that can manually be shut on / off) but have read maybe the renogy thinks the battery is full if the solar is operating. If only manufacturers sent all RV's ready for boondocking from the factory =) hah.
I'll update signature! its a 22 chevy 2500.2021 Reflection 150 260RD
2022 Chevy 2500
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netazure -- I can't give you an engineering-level rationale reason for this input, but I'd attach the 12vDC negative directly to the 7-pin's negative. Probably not writing this 100% correct, I'll give it a go anyway: attaching the negative to the camper's frame means the electrons have to "find" their way back to the battery versus a direct path.
If you have a Mictuning box (which many of us have installed in lieu of the OEM-provided junction box) it's very easy to do.
Forum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
2017 Ford F-350 DRW, '19 315RLTSPlus
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Originally posted by howson View Postattaching the negative to the camper's frame means the electrons have to "find" their way back to the battery versus a direct path.
2018 Dodge 3500 6.7 Cummins w Aisin and 9 cup holders
Electricians were created because engineers need heroes too....
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Originally posted by Scott'n'Wendy View PostThere is nothing wrong with considering the trailer frame as an extremely large AWG wire.
From the Hydrastar manual:
In email conversations with Hydrastar regarding the lag I was experiencing (and the wiring issue I found courtesy of MORryde) the Hydrastar engineer followed up with this hand-drawn schematic:
Some may say this is an apples-to-oranges comparison (DC to DC Charger vs the Hydrastar). My input is based on the assumption that it's a good practice to eliminate as many connections (within reason) between the + and - electrical path in a low voltage application.
Forum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
2017 Ford F-350 DRW, '19 315RLTSPlus
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Originally posted by Scott'n'Wendy View PostThere is nothing wrong with considering the trailer frame as an extremely large AWG wire.
JimLast edited by Guest; 08-08-2022, 03:44 PM.
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