Anybody here use a battery combiner to charge their tm batteries? Have a 24 v system (parallel) for trolling motor. See lots of options that charge at 24v. Any issues? Any recommendations on a brand? No problems in my system but why not use excess power to keep tm batts up….unless it creates a problem.

I think those are designed to charge starting battery first then switch to trolling batteries. I've heard good things about the trollbridge and the stealth one.
I don't have one. In an 9 hr day I might only put 30 minutes on my big motor. If you do a lot of running and gunning one of those may be good for you. Good luck.

going to add this one to my system soon I think.

https://minnkotamotors.johnsonoutdoors.com/battery-chargers/board-alternator