A volt meter is an RVers best friend. It does sound like you may have shorted the batteries. If driving is not charging the chassis batt, you have problems. It's unknown if your chassis batt is charged on shore power. Driving or running the engine for 30 mins should put the chassis batt in good shape. If not it's probably shot. You can take it to a battery center and have it load tested.
John & Clare - Buck & Zeus - Jack & Husky
2008 Fleetwood Bounder 38P
Towd: 2 HD Streetglides