PowerMax PM3-75-MBALK 75 Amp 12V Smart Battery Charger with LED Display - Fast Charging for Cars, Boats, RVs & Marine Batteries - Ideal for Emergency Power & Outdoor Adventures

I put this in my 2nd RV 3 years ago and still running great, I did a lot of research about convertors before buying and this is the only company who has the best trickle charge and maintain health of the deep cycle batteries, this convertor pays for it self preventing the replacement of house batteries, it has intelligent processor even cuts off charge when batteries are full, because I also have solar charging system in place, other convertors has 0.03 volt trickle charging for full batteries but solar charge controller also does the same thing and it adds up destroying the batteries by over charging, instead this cuts off the power completely, I normally believed RV deep cycle batteries only last for 2 years, I had to replace them every 2 years, until I did my research and found out solar + convertor charger in combination over charge batteries destroying them, my last battery purchase was 8 years ago on my other RV which I bought a different model from the same company 10 years ago and still doing great. Not to mention $120 a battery. I will never buy another convertor, I wish they made convertor/inverter for running 110v from batteries. Thank you for great product. I am an full time RVer since 2004.