theoldwizard1 wrote:
brulaz wrote:
So installed a left-over 1000W inverter in the truck (which has a 220A alternator). Good for other things too (like charging tool batteries), but primarily use it to run a 650W battery charger in the trailer. Added an extension cord with water tight couplings between truck and trailer and we're good.
That will work ! Not as "clean"/simple install as a DC-DC charger, but if you have the "left-over" inverter, it IS less expensive !
One advantage is that you can use an existing more sophisticated 120VAC charger in the trailer. One with temperature compensation and multi-stage charging.