Mine was throwing discharge warnings last year. I put it on a trickle charger a couple times and it was fine after that. Same time period this year it did it again, so I am trying charging it again. If it doesnt work I guess I will have to pony up for a new one.
2008 Jerez Black / Black M3 DCT
1990 300zx Twin Turbo Modded
2007 Yamaha R6
Past: 2008 EVO X, 2003 325i