[villagetinker]

I have had automotive batteries go "bad" when just sitting without being used or charged. I also had one blow up in my face due to incorrect charging! IMHO, call the manufacturer and ask them about long term storage and trickle charging as well as the rate of the trickle charge. NOTE: GFCIs have been known to trip during T&L storms (just helped a fellow villager the other day when this happened), so you should have someone looking after the cart on a weekly or bi-weekly basis.