It sure will expose a weak battery that's for sure. I finally bit the bullet a few weeks ago and said the heck with it and got a 24v 100ah lithium lifepo4 battery dedicated just for my Ulterra ipilot link. Was it painful to hit the "purchase" button? Sure was but I have went from two heavy batteries and the extra wiring down to one battery that literally last for multiple days without needing a charge and it weighs roughly 38#-40#.
Pros- one battery that lasts multiple days and recharges insanely fast and weighs hardly anything compared to agm or flooded acid batteries.
Cons- expensive for sure, have to get a dedicated 24v charger, and will only work for 24v equipment which is only the trolling motor.