All ActivityMost RecentMost LikesSolutionsBattery not charging. when plugged into shore powerMy battery will only charge when coach is running. Charges up to 13.8 volts dc. when i shut coach down the battery looses it's power rapidly within a few hours. When I plug into shore power the same issues. I don't know how to figure out if it's the battery or the converter/charger. The model is a MagneTek 900 series not sure what one. The coach battery is brand new. The secondary battery is about a year old. Any help would be greatly appreciated