Hello gents, I am looking to fabricate a home inverter system to run a fridge and some lights during an emergency. The type of inverter I am looking at is a pure sine wave type approx 5000 watts. My question is what is the best battery to use? I will probably keep it on a trickle charger to keep it at 100% and I would probably keep it in the garage. I do not think lead acid is the best choice as from what I understand its not recommended to use them indoors (even a garage). I would like to have the longest run time available. So what are my choices? Gel Cell, Marine Battery (is this lead acid?).