2003 IQ DS powerdrive Charger will not shut off.

[anziosaint]

Charger just recently started not shutting down. Here’s the deal..... 2003 IQ with factory charger. 48v with batteries just approaching one year old. Charger has always ramped them up to approx 58-59v while charging and shut down on its own. Batteries read 51v after settling for 12 hours after charge and all 6 read 8.3-4 individually after 12 hours off charge. Just yesterday I plugged in the cart after only a couple mile ride and it charged for 30 hours!!!!! Batteries were bubbling and warm but not too hot. The charger was at 5amps when I pulled the plug? What is going on here? Is it my OBC or a relay in the charger? I thought these chargers shut down after 16hrs as a fail safe. I’me glad I happened to check in the cart when I did.