I need someone who is battery smarter than I.Yellow optima,never used but older like several years,kept charged from what I was told.Installed 4 on my cycle charged to 13 volts,rode 3 miles and it kicked into limp mode.After getting home two batteries tested at 8.8 volts and 2 were at 12 volts.How do you test if an Optima is beyond recovery?Larry
