2008 GS. Owned for a little over a year. 19100 miles. Rode yesterday for 45 minutes of freeway driving. Rode this morning for 35 mins freeway driving. On my way back later this morning (20 minutes of riding) stopped and shut off motor. When I went to start it back up (5 minutes later) it turned over once or twice stopped and the instrument cluster went blank. Towed home. Checked battery at 12.5 volts. Terminals all tight. Put on charger (Battery Tender Jr.). turned key after an hour and the instruments/panel flickered a bit for about 6 seconds then went away. I could hear a relay click when I turned the key off. Went back after 6 hours turned the key and absolutely nothing. I have had no issues with starting or any electrical drop outs. I don't know how old this battery is. Just came back from the shop where they replaced a bad oil pressure sensor. Any ideas? Thanks!