Renogy DC-DC Charger UPDATE 2 Test
Update--fixed the problem below--you can skip to 4:06 pm post. Update 2- 28 Feb. My 20 amper is on, it has the green light and no red light. But it is cycling up and down for amps constantly, mak...
Forum Discussion
" The DC-DC share a common negative ground meaning that there should be only one common ground point between all batteries and electronics typically seen in either chassis/body ground, a canopy, a trailer, or even the vehicle battery negative connection. In most cases, connecting
the starter and house battery directly to the DC-DC is enough for a grounding application. You will not ground the body of the DC-DC. In the illustration below, the two batteries are connected
to the same chassis ground point."
From the manual. They show the starter and house batts in a MH both being grounded to the frame, one at each end of the MH.
With the camper or a trailer, you get the common ground through the 7-pin and the starter and house batts are grounded to different frames.
The 7-pin works right with the camper's clearance lights etc, so my problem was internal to the camper, but ? Mr Wiz's idea is one possible, although I believe the solar controller to battery was disconnected (array too).
Whatever I did to fix it got the groundings sorted out it seems. Full marks for Renogy that the unit's "protection" saved it. ( On that, ISTR reading somewhere that there is a fuse inside it you can get at they don't mention in the manual, but can't confirm if that is true)
the starter and house battery directly to the DC-DC is enough for a grounding application. You will not ground the body of the DC-DC. In the illustration below, the two batteries are connected
to the same chassis ground point."
From the manual. They show the starter and house batts in a MH both being grounded to the frame, one at each end of the MH.
With the camper or a trailer, you get the common ground through the 7-pin and the starter and house batts are grounded to different frames.
The 7-pin works right with the camper's clearance lights etc, so my problem was internal to the camper, but ? Mr Wiz's idea is one possible, although I believe the solar controller to battery was disconnected (array too).
Whatever I did to fix it got the groundings sorted out it seems. Full marks for Renogy that the unit's "protection" saved it. ( On that, ISTR reading somewhere that there is a fuse inside it you can get at they don't mention in the manual, but can't confirm if that is true)
