So found a bunch of wall wart psu's that work fine with existing lights -lights run for hours directly off battery, no excess heat etc. Looking at battery after with CA 3 and everything looks fine. Assuming that best way to do permanent hook up is to splice ac cord directly into Anderson coming from battery? Are there other options? Are there any cautions against running too many lights off my 48v battery? (I typically run 2 x 3.8v and 1 x 8.4v lights drawing between 1 - 2 amps through the winter, running about 1.5 hours per day max).