I got my new charger in today. Hitec x2 ac plus. I put my batteries in storage mode. When I go to use them again do I charge and balance them or throw them in the truck and go? Also, when should I put them in storage mode? If they're not gonna be used for a day or two, or if they won't be used for a week plus? Not sure what is considered a longtime that is revered to in the chargers manual.