I'll never buy another battery from WM.
I had a deep cycle battery from them about 8 months and it went bad. They said the warranty was good for only 90 days! Guess I didn't realize that when I bought it originally. Went to AutoZone and bought the same size battery, even a few bucks cheaper, with a 1 year warranty. Never again will I go to WM for a battery!
And they are giving batteries away every day for $100+!
Oh, I am a firm believer of a battery cutoff switch.