Battery hookup

[Mcadoo81]

I’m looking for a diagram on how to hookup the battery on a 2007 keystone zeppelin z241 .i unhooked the wires a few years ago I got a white wire that is hanging down I’m not sure where it goes.i got another long white wire that is unhooked I think it’s the positive to the battery

[Bostongone]

The RV’s made in those years used white as the negative connection and you should be able to trace the heavy gauge white wire to some ground bonding point on the frame. The heavy gauge black wire that goes to the two terminal thermal circuit breaker in the picture should go to your battery positive terminal. I am not sure where the light gauge white wire goes to but based on the standard at the time should also go to battery negative.

[Mcadoo81]

I got another long white wire should I connect those two together? Thanks for the help

[Mcadoo81]

All the wires on the terminal are hot?

[sourdough]

Not sure what you have but an RV battery hookup is very easy and straightforward; one to grd. and one to (usually) a little block with a resettable link (12vdc). Power is pretty simple if you know what it is, if not, you might want to be more specific.

You have to determine what wires go to what AND you need to know what should be "hot" vs not. You absolutely need to have a VOM and how things work, the difference between grd. vs battery, AC vs DC etc.

[Mcadoo81]

Thanks I will look tomorrow if that white wire runs to a ground I will just hook them up together

[flybouy]

I'd replace those auto-resetting fuses while your in there. From the pics the terminals look very corroded.

[JRTJH]

In RV's until about 2018 (or around then) typically the electrical connections were the same as a stick and brick (S&B) house. White wires were negative/neutral and the black wires were positive/hot. In around 2018, Keystone changed the color code for wires to match those in automobiles rather than S&B houses.

I'd guess that if your wiring is the factory wiring, then those white wires should be ground. Whether they are for an electric tongue jack, a set of electric stabilizers, a light, your trailer brakes (through the break away switch wiring) or some other device is a question I can't answer.

You'll need to do some "scouting around" your trailer tongue to see what's not connected, what's possibly missing and where those wires go. At any rate, if they're OEM, white is ground. If they are part of something installed by a previous owner, then who knows what color wires he used ??????

[Mcadoo81]

Where are those located? Should I buy a new block the plastic is broke anyway

[JRTJH]

You can buy new "12 volt auto-resetting circuit breakers" at any RV parts store and sometimes at NAPA. I've never seen them in AutoZone, but some of the "mom and pop" auto parts stores around here carry them. Usually around $5-6 each.

They come in different amperage ratings (just like fuses) and on the bottom of the old ones is the amperage rating. They all look the same (metal box or gray plastic box with two terminals on top) so you can't go by size or shape or color to get the amperage rating... If there are no markings, I'd guess yours are probably 30 amps... THAT'S ONLY A GUESS !!! so try to get the markings off the gray box to be sure.

[flybouy]

They are also available on line from Amazon, WalMart, Ebay, erc. You should also clean up those ring terminals on the ends of the wires or replace them (better option) as they are corroded as well.

[chuckster57]

And I might as well add, when you replace them pay attention to the posts and which way the wires go. There is a “battery” side and a “load” side. Often times the posts are different colors.

[Mcadoo81]

I hooked both those white wires together and nothing.the white wire pictured runs to a junction box

[chuckster57]

White is usually the ground in RV's. I would open the junction box and verify if that's where it goes. There may be a bunch of white wires put together with a large wire nut.

[Mcadoo81]

Yes the white wires where all connected with a wire nut .is that little block where the wires hook up that Are corroded? I wish I would have never disconnected the wires.

[chuckster57]

Those "blocks" with two posts are for the POSITIVE WIRES ONLY. The white wires should go to the battery and the frame at some point.

[flybouy]

Yes the white wires where all connected with a wire nut .is that little block where the wires hook up that Are corroded? I wish I would have never disconnected the wires.

If you look at your second picture in the original post the ring terminals on the black wires that connect to the auto-resetting fuse is corroded. The blue/green color leading into the wire insulation is the corrosion of the copper wire.