It seems to work, but I have found some issues with mine that I would prefer changed. The battery leads are very short so positioning the module is tough (I had to add extensions to one of the leads) and the wire size seems too small (likely the reason for the extremely short leads). The cheap in line fuses on the batteries leads are not moisture proof so I had to replace with waterproof ATC style fuse holders after they corroded and kept blowing fuses.I have the truck charging system as well and feel the whole system is really most useful as an extra boost but wont replace your normal charger.Last edited by smbassman on March 28th, 2010, 12:38 am, edited 2 times in total.