sunrise
New Member
- Joined
- Jul 16, 2020
- Messages
- 206
I was pretty excited after watching Will's video on Renogy's DC-DC charger with MPPT. It solves the last issue I had with my trailer solar setup - charging trailer battery with TV starting battery/alternator, and provide isolation. That's until I read the wire sizing requirement.
Unlike van converted RVs, trailer trailer uses 7-way connector to hook up to TV, most common gauge of the power/ground wire in a 7-way cable is 10-12 gauge I believe, if a Renogy DCC30S (30A model) draws full 30A, even for the 10awg cable it's likely it will trip the fuse on TV, when my LiFePo4 battery is at low SOC, which will can draw as much current the 30A charger can provide. For 12awg cable it's a fire hazzard. I am not even talking about the 50A model.
Does this mean this product isn't designed for travel trailers? or are there any settings that can be tweaked to limit the DC amp draw?
Thanks!
Unlike van converted RVs, trailer trailer uses 7-way connector to hook up to TV, most common gauge of the power/ground wire in a 7-way cable is 10-12 gauge I believe, if a Renogy DCC30S (30A model) draws full 30A, even for the 10awg cable it's likely it will trip the fuse on TV, when my LiFePo4 battery is at low SOC, which will can draw as much current the 30A charger can provide. For 12awg cable it's a fire hazzard. I am not even talking about the 50A model.
Does this mean this product isn't designed for travel trailers? or are there any settings that can be tweaked to limit the DC amp draw?
Thanks!