Chevrolet C3500 battery not charging while towing RV on Chevrolet C3500

Some Chevrolet C3500 owners report experiencing issues with their battery not charging while towing an RV, which may stem from several factors. These include the auxiliary battery for the camper not staying charged due to the RVC system and potential loose or damaged wiring between the tow vehicle's alternator and the RV, which can hinder proper charging. Additionally, some users have noted that their battery shows only partial charging when connected to the truck, indicating a possible malfunction in the charging system while towing. It is crucial for owners to check the wiring, replace any damaged connections, and inspect the fuse block for a 40 amp fuse as outlined in the owner's manual. Furthermore, utilizing a DC to AC converter and a bank charger can provide a more effective solution for charging RV batteries on the road. Referring to the owner's manual for the tow vehicle or trailer to identify the +12V lead that supplies charging may also help resolve these issues.