Powermax PM4 75A 110V AC to 12V DC Power Converter with 4-Stage Smart Battery Charger - Ideal for RVs, Boats, Camping & Off-Grid Power Systems

This saved me over $800 in repairs from the dealer. I've only had it in for a few days but it hasn't had any issues and it charges the battery well!120v in and 13.6 out when charging.Really easy to install but keep in mind that the wires are on the other side which was a little confusing but the board was well labeled so as long as you take your time and read the labels you will save yourself a bunch of money.Also a cool little feature is that it has a green light that lights up to tell you the converter is working.