Wiring - Charging

[cico7]

I want input.....I want to put a battery on my popup camper and set up a charging point
in the back of the XK. This would allow me to plug the trailer into the XK and charge the
battery if I am not close to electricity.

The camper has an inverter now. I am going to add 2 batteries to it so I am looking for a
way to charge it.

I was just reading Adondo's reply on the Roof Rack lights so I hoped he or someone will
have input for a plug.

[hoaxci5]

I thought with 7 pin RV trailer connectors there was an aux wire that allowed the batteries in the RV to charge off the alt when the vehicle was running.

[Sal-XK]

I thought with 7 pin RV trailer connectors there was an aux wire that allowed the batteries in the RV to charge off the alt when the vehicle was running.

Really that would be cool. Ahww man now you got me thinking. But if there is no isolator installed then technically the RV battery could be allowed to drain the starter battery

[hoaxci5]

[hoaxci5]

I can't find a clear answer, but I believe that you are correct in that the 12+ is always hot meaning you could definitely kill your starting battery.

[Sal-XK]

I guess you could install an isolator after that plug to keep you starter battery from draining.

[cico7]

Well, I never considered the 7 wire harness for providing power,
but after i read the various comments, I found a website e-trailer
for a 7 wire diagram. They are using a 12 guage wire for the interior
lights or battery charger.

But like Sal suggested, need an isolator.

[cico7]

Deep cycle batteries need a slower charge, but I don't want to take all day to charge the battery.
If your'e driving a ways you can get a full charge. The wire size should not regulate the charge.
I need an isolator and more research.

[Sal-XK]

Well, when I replace my fuse I can measure the amps and volts coming out of that wire and we can do the math an figure out a charge rate from that.

[cico7]

<Insert Joke/>
She was an avid gardener, and she got carried away purchasing shrubbery one day.
You might say she had all her money tied up in hedge funds.

She would have a safer portfolio is she didn't place all her money into such a garden-variety investment.

Though Hedge funds are dirt cheap