Well, the cold weather and dark nights are here and this is having an affect on the battery. The Bus didn't really want to start yesterday morning. Took the battery off and connected it up to a battery charger and the ammeter displayed 3.5 Charged it up for 6 hours and there was hardly any change. No bubbles rising or anything. Will take it to the local Carparts shop for them to test it. The battery was bought used off a Mercedes Sprinter last June.