Rear hitch rack battery bank

Many decades ago I made the mistake of putting 300 lbs of heavy parts I'd bought in the back of my Airstream.:S At 45 mph it tried to take me to the scene of the accident. This was in the days when you had to move the handle to put the trailer brakes on which I did while still accelerating. Once the swaying stopped I'll was able to slow down... stop and move half of the items to the front. Once was enough and to this day when in doubt about having enough tongue weight on an equipment trailer I'll give the steering wheel a little wiggle at 45 mph with my hand on the manual brake control to see if it's going to get interesting.

AGM batteries do not need venting and putting them close to the axles will be cheaper than a new trailer and TV. You can still use your rack for bulky items.