Minn Kota MK-315 Battery Charger Offer

I have a MK-315 that's out of warranty and defective. It was in this condition when I bought the boat. I've already replaced it with the exact same mode but if someone thinks they can fix this and would like it I'll give it away. First one to PM me will get it but it's about 20lbs and you'll be responsible for shipping.

It initially just said to check connection. These was even after getting 2 brand new batteries. It did this on all 3 banks. I opened it up but I didn't see anything obviously broken but then again I don't know much about electricity. Put it back together and connect it to batteries and now it says full charge.

At this point I'm thinking great...we fixed it by letting new air in. Take the boat out for a few trips and notice my trolling motor is getting weak...like weak enough to not move the boat. I hooked it back up to AC power and it still says full charge so it's obviously broken.

Managed to find a good deal for this on the internet for $140 shipped then take another $25 off for the rebate. The new one works like a champ.