Ford C-Max in Toads-Towed Behind Motorhome Posted January 27, 2018 · Report reply I used RVi Brake 2 on my 2013 CMax Hybrid. Worked great. Had to install +12vdc from coach to keep battery charged. Also needed dedicated 12 vdc from battery to RVi Brake. Car turns off all power to outlets after about 15 minutes when car is in off position. Just used direct line with fuses on +/- sides. No dead battery since. Followed Ford OM for towing, straight forward easy. I have moved my RVi Brake 2 to my 2017 Ford Edge. Nice to be able to move it without a lot of effort.