I just bought a new battery maintainer from harbor freight. It came with brackets to permanatly install it. I decided to mount it on the left side, under the cover, in front of the junction box. I put a bolt through the screw hole for the bottom of the cover and tightened it down, then slid the charger bracket onto it and tightened it down with a nut. There is enough bolt sticking out so that i can use a wing nut or something similar and secure the bottom of the cover so it doesnt blow off. It only cost 20 bucks, and it is the 3 stage charger that all the AGM typer batteries require. I have it charging the battery now, it was really low, I will keep you all posted on how it works and put some pics up of the finished product.