I use a genius 3500. Used it for my old pup(12v) and will be using it for my new 26bh(2-6v). Also used it for my old jeep when I wasn't using it. Good simple charger that seems to work.
TT: 2015 Jayco Jayflight 26BH Elite
TV: 2014 Ram 1500 Sport, 5.7 HEMI 3.21, Firestone 1000# air suspension. WD hitch w/800# bars
SOLD: 2012 Jayco J-series 1007