I had noticed that my trolling motor had seemed like it was working in slow motion during my last trip and so I tested the voltage going to the motor and only had 28 volts. Tested my 3-50 amp/hour ionic battery 2 were at 13.3 volts but one of them was only putting out 1.3 volts. Via the blue tooth app all batteries showing 13.3 and in good shape. Attempted the wake up procedure on it and got it up to 10 volts. but as soon as I turn the trolling motor back on, its back to 1.3 volts. Has anyone else had this issue??