Can I Power Camper's Running Lights When Parked And Unhooked At The Camp Site

Updated 08/26/2025 | Published 08/24/2025

Question:

IVE SEEN A PLUG USED ON CAMPERS IN THE PARKS THAT ALLOW THE MARKER AND TAIL LIGHTS TO BE ILLUMINATED WHILE THE RV IS NOT CONNECTED TO THE VEHICLE. DO YOU CARRY ANYTHING LIKE THAT?

asked by: Jeffrey S

Expert Reply:

Hey Jeffrey, I have not heard of something like this, but I think I have a solution if it's worth the trouble doing it.

You'll first want a 7 way junction box like # e99011 and 12v battery on your camper - most already have this, but if not, let me know. Then you can wire an onboard 12v battery to the running light circuit with diodes and fuses to protect everything from backfeeding. You can use an inline switch to switch it between getting power from this battery when you're unhooked, and switch it back to getting power from the tow vehicle's 7 way outlet.

This is a very diy method as I don't see anything plug and play from anywhere online to do what you're talking about. But if you come across something that is plug and play, let me know! I'd be happy to try and get it added or let others know :)

expert reply by: Andrew N