06-11-2025, 11:06 PM
Since Kent started this thread here, I thought I'd ask a question about a problem I'm having with my lithium batteries. Just got a newer boat and it has lithium batteries for the electric trolling motor. First time I took it out, I had no issues, the second time I took it out the batteries went dead after a few hours. I thought I had a bad battery but I decided to charge it with my ice fishing lithium battery. I checked both batteries before I took it out again, they were both around 13 v so I thought I was good, went out again and again it went dead after a couple of hours. Got home and checked and the other battery was dead, this time. I have it on my FFer lithium charger now, hope the light on the charger turns green, when it's fully charged. I plan on charging the other battery once I'm done with the first one, to make sure they are both fully charged, for my next trip out. If that works, then I'll know the on boat lithium charger is bad. My question is, does this sound like a reasonable path to figuring out the problem? By the way, I just downloaded the app to my phone to be able to check the battery voltage or percentage of remaining charge, so I can tell what's going on with the batteries.