While in storage how long should the batteries stay charged? These battereies are about 5 yrs old and have not been a problem while in use but when I store the coach for about 6 weeks the batteries are totally dead. I have a battery disconnect that is turned off. Are the batteries nearing replacement time or is this normal? When I disconnect the battery from one of my collector cars and reconnect in 8 weeks, everything is fine. Dont know if this is a fair comparison or not though.