Drill a hole through the top of the battery box close to the negative side, take the lead off of the negative post , move it to one side of the switch.Get a piece of 10-12ga. Wire about 8” long crimp an eyelet for 10-12ga wire on each end. Connect one end to the other terminal on the cutoff switch and the other end to the neg post on the battery.use some rubber silicone/sealant between the top of the battery box( where you drilled the hole and the cutoff switch... done.
I installed one similar to the one listed below on my 28BHBE just outside the box on the passenger/door side. I also replaced the box and battery with a larger size. Works great and my battery is always ready to go.
Originally Posted by colby
That is probably a great decision. Draining the battery completely will significantly damage it and multiple times may wreck it completely.