OH, and another thing.. My GT's sit outside - summer and winter. During the summer they see very little use as they both are used for winter - one with a snow blower and the other a plow. I have about 1/2 acre of grass to cut in the summer and a couple of 80ft drives in the winter. Never had an issue starting, never had to trickle charge, etc. When I start either of my GT's they start in 4 or 5 revolutions of the engine (both B&S Vanguard) and (I use non ethanol gas) too. I do basic maintenance on both the engine and hydraulics (synthetic oil change on about a three year cycle, etc). I think in perhaps the last 6 plus year I changed my batteries but frankly can't remember the last time I charged them. My biggest issue is frozen ignition keys and not starting, etc