How tempermental are the batteries on the cats. My wife and I have a pair of arctic cats and live in an area where we can't ride unless we trailer and travel The atv's are at a storage facility where I don't have access to power for battery tenders. I definately don't want to damage the batteries. How long can they sit without hurting the battery or becoming dead. 2months? 6 months? Can I go out and start the atv to recharge it or will that hurt the battery? If that's ok, how long should I let it run? Thanks for your help.