Converter for Lithium Battery Trailer Charge When Towed

Question:

I have a 2019 Toyota Tundra Crewmax. I pull a 2016 Rockwood Mini-lite 2504S TT. I just replaced the lead battery with 2 Lithium batteries 105ah rating each. I believe I need something additional between the truck and TT so I can charge the batteries, but I cannot find out what that is. Any help would be great. Thanks-

asked by: Wayne F

Expert Reply:

Since Lithium batteries require a higher voltage to charge you are correct, you do need something between the 12 volt accessory circuit of your Tundra's 7-way and the battery. What you'd want is the Redarc In-Vehicle BCDC Battery Charger # RED96FR which has a lithium charging profile like you would need can provide up to a 12 amp charge.

expert reply by: Jameson C