2016 R23 OB-2nd set of batteries, less than 2 years old, replaced

[psolie]

Bought 2nd set of batteries from Battery Systems Seattle, Centennials, less than 2 years ago. A month ago I noticed the charger fan had been running a lot and a gas smell and the forward house battery was smoking and very hot, I removed it and bolted its terminal wires together. within 2 weeks the 2nd house battery did the same thing. Turned shore power off and took the set of batteries to Battery Systems and they replaced the set no charge with Continentals. The new batteries are warrantied until 9/27/2025
Should I be worried that the charger is not OK?

 

[Jared Dunning]

If a different type of battery was installed (AGM, deep cycle, etc.), it could cause this issue—especially if the charger settings weren’t updated to match. It’s also possible that the charger itself is starting to fail. Even if the settings appear correct, a malfunctioning charger can still cause problems like overcharging or overheating.