Battery charging question

[hughpam]

My trolling motor battery went out on my last trip. No biggie, it's old. So I get out the other two batteries that I had on the shelf since selling my pontoon boat (never should have done that!). They are only two years old.

When I hook them up to the charger it says that they have WELL over 100% charge. I took about two days to get the "full charge" light on for them. It just looks wrong.

Any ideas?

[BingJr]

Best thing you could do is hook them up to something that will drain them and then charge from scratch. If they take and hold a charge they are good, if they dont, then the overcharge indicator means they are damaged. A crappie light or something of the like will drain them right down.

[hughpam]

Thanks Bing. Ended up taking it to Big O. They charged them both and said that they are OK. I hooked it up and it did fire up my trolling motor. Hope it holds out on my next trip. Have a couple planned for next week.