Hey BA Fans, I thought I hit it big when I bought 2 UPS supplies for $15 apiece at the local surplus shop that each had 14 Gates Cyclon 2.5 Amp-Hour gel cells. Now it looks like I have a lot of dead lead to dispose of. None of them will take a charge. Anybody know of a way to bring dead gel cells back to life? TIA, Ross KB9JJR