I don't have power in the storage shed that I store my P1000-3, and I may use it a few times a month during the winter for short rides. I try to give it a charge before I put it away about every 6 weeks, and I've never had a problem. Normally putting a battery on charge after 6 or 8 weeks of being idle doesn't require much of a charge at all. However, thinking about getting stranded out on a trail far from help, I've decided to buy one of those jump start lithium battery gadgets. You can buy one for $50 on up, and many will also inflate tires. So for a few bucks you can help resolve two major problems that you could experience on you ATV / UTV - dead battery, flat tire, and many have a light too. I plan on buying a Stanley 1000/500 (J5C09) for $68 from Walmart (advice is welcomed). Reviews on these jump starters seem to vary. It seems like a near necessity to me. I know my winch could easily drain my battery down quickly, and this seems to be as good of a solution as the 2 battery kits that are available.