[rheavn]

Here is an item for owners of coaches with inverters that should probably be in your spare box. If it blows you will have no 12V house power or inverter. They come in different amperages, but the one on my coach is a 300 amp. The amperage rating for the fuse is marked on it. I do not have one on my starting batteries, but some Newells do. Here is one source, but I'm sure they are available many places.

http://www.solar-electric.com/f-300t.html