The problem with electric vehicles is installing motors big enough to pull a trailer but supplying that power to those motors (F150 Lightning has 560hp)
While it's possible to design a powered trailer axle, it's complicated and expensive (and their example was a tiny 1500-2000lb trailer (at least before the battery pack got added).
A simpler and far cheaper solution would simply be to add a large battery pack in the trailer with a quick connect that could feed the trailer battery power to the tow vehicle to give extended range.
Assuming you can stop a short distance away from the campsite, you then have a battery pack capable of powering the rig for a couple days (not conservation mode but crank up the air/con and be comfortable support).
Say you have an F-150 Lightning with 150kwh battery pack and 300 mile range.
- Add a 25ft trailer and you are probably down to 150mile range towing.
- If the trailer had 75kwh, you could up the range to 225 miles.
Swing by a fast charger (assuming you can fit in) just before arriving at the campground and you may start the weekend with 70kwh.
- With air/con and other misc loads, you may be drawing an average of 1.5kw, so 70kwh will last you around 46hours.
- Swing by the fast charger on the way out to top up and you have 225 mile towing range on the way back.
Still going to be a hassle compared to just filling the gas tank and it's going to add probably $10k to the cost of the trailer (including beefing up the suspension) but some of that will be balanced against buying and maintaining a generator. Net will cost more but not insurmountable for trailers at the upper end of what 1/2 ton trucks can pull.
Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV