I have a buddy that just had an issue come up with his trolling motor set up and he's trying to figure out if its the charger, battery, motor, or some combination thereof.
He has a 109 lb Motorguide Digital Tour, 2015, on a 2015 Basscat Cougar. This weekend during our club tournament, he lost a good bit of power early in the day; prop would turn but not really move the boat. It turned like that, barely able to hold the boat in the light wind, for the rest of the day.
He has a weird set-up, with 3 batteries total...a 31 series for starting/accessories that is tied in to two 27 series deep cycle to give the 36 for the troller. Seemed weird to us when he bought the boat last fall, but after talking to a Basscat rep at a show this winter, it sounds like there are quite a few boats that have this setup.
He's run through some volt checks on the charger and the batteries, and it seems like one or both of the trolling batteries might be the culprit, but does this kind of loss of power suggest any issues with the motor itself?