Don’t forget about those coach batteries. Check the water in the batteries on a routine basis. You also want to make sure the top of the batteries are clean and free of dirt and liquid. Check the battery box to make sure that you do not have a corrosion build up in the box. If you do, remove the battery, clean the box and remove any corrosion and rust. Paint the box or treat it to minimize corrosion and rust.
Battery terminal corrosion can be minimized by installing small battery post felt pads that are coated with a chemical to reduce corrosion. They do work and I highly recommend using them. When you clean the battery posts and terminals, check any wire connectors that attach to the terminal for corrosion and clean accordingly. Make sure that the box still
has enough metal to hold the battery before replacing the battery in the battery box.
If your battery box slides out, clean the slides and brush on a small amount of grease to minimize rust or corrosion build up. This will also make it easier to slide the box in and out. Paint or treat any rusty surfaces.
Regular maintenance will help prolong the life of the batteries and ensure that they are properly charged for use when needed. I keep a small battery maintainer (Costs less than $10. Harbor Freight has them for as low as $5) to keep my start battery properly charged. It is not a charger. It is a low voltage maintainer. This ensures that the coach start battery is ready when I need it.
I found that converting my D series coach batteries to 6 volt golf cart batteries increased the available power to the coach. I found two golf cart batteries that fit in the same foot print as one D series battery. The wiring diagram for the conversion can be found on the RVSurvey web site at www.rvsurvey.com under the More Info tab.