12volt power source

[wis-redneck]

Have not had time yet to experiment on my travel trailer. So will ask on here. Will the 12 volt fixtures, such as slide out, awning, and lights, etc. function when trailer is hooked up towing vehicle power, without any battery installed on trailer?

[wildwest450]

I'm gonna say no, but not 100% sure. If you can wait for an hour or so, i'm pulling mine out to get ready for this weekend, i'll throw the battery disconnect and check it out.

[snakebitten]

Hey dawniewest............

hooking up on a Tuesday?

I'm green with envy.

To avoid being a thread hijacker: I am betting that no two RV models can be guaranteed to be wired similarly. So it might be possible for one model to use the Tow Vehicle as a power source for energizing some 12volt devices, and the next RV not being wired to do so.

But is it common for an RV to be equipped with a slide out and not have an onboard battery? Just curious.

[wildwest450]

Originally Posted by wis-redneck

Have not had time yet to experiment on my travel trailer. So will ask on here. Will the 12 volt fixtures, such as slide out, awning, and lights, etc. function when trailer is hooked up towing vehicle power, without any battery installed on trailer?

Well, everything on mine worked with the battery off and plugged into the truck.

Originally Posted by snakebitten

Hey dawniewest............

hooking up on a Tuesday?

I'm green with envy.

Ha, just pulling it out to wash it and do a little general maintenance. Headed out Thursday morning.

[MartyG]

Originally Posted by snakebitten

Hey dawniewest............
To avoid being a thread hijacker: I am betting that no two RV models can be guaranteed to be wired similarly. So it might be possible for one model to use the Tow Vehicle as a power source for energizing some 12volt devices, and the next RV not being wired to do so..

Agree, it depends on the wiring. If, for example, the tow vehicle's 12vdc lead meets the rest of the wiring at the battery terminal, and is separated from the others when the battery is removed, then it would not work. As an opinion, there seems to be a lot of TTs without batteries around. It's hard on the converter, the electronics, and raises issues like this.

[skarlin1976]

My tv can power my electric tongue jack. Haven't really tried much else.