I stupidly must've left my key on after the 1st start up of the year. I went back today, 20 hours later to bring it home and noticed the key was on and I had nothing. I jumped started it off my 4 wheeler, let it run for 10 minutes, drove it 1 miles home, shut it off, and it re-started, a little slow, but it started pretty easy. I have it on a battery tender Jr now and the light has been red so far, about 3 hours. Do you think once charged and road this battery will be ok? Or once you killed it like I did, it's permanently damaged?