I have an 2007 Club Car Precedent with the 4x12v system and the batteries lose charge while sitting. I read on this forum that club car has gone back to the 6x8v system. My cart runs fine and runs long but when I leave it sit up the batteries lose their charge pretty quickly as in 2-3 days. I turn the key off and put switch in tow position but it seems like the cart always needs a full charge when I plug the charger back in. I always fully charge my cart after playing, it just wont hold it. Anyone know why that is? Also I have owned several ez-go carts and their chargers put out 30 amps. Is there a better charger for this cart than the 15 amp club car unit. Other than that I have found the club car units to be superior to the ez gos in every way. Thanks Steve