First, thanks to all of you and your inputs to my previous post (which somehow turned into a discussion on oil sampling). Looks like the average life of the OEM battery is around 2 years. Now for Part 2. I installed a new battery (went with the Mega Crank as I have used those before). Charged it with the Battery Tender and then started it right up. All was well. Went for a ride of about 150 miles on Wednesday and everything was fine. Decided to take the wife for a breakfast ride this morning and off we went. Got about 2 miles and the Check Engine light came on as well as the battery idiot light. Checked the volt meter and sure enough it was showing only 12 volts so no charging taking place. Turned around and went home. Any ideas? Looks like I have to trailer it to the dealer which is 50 miles away as I'm not sure it would make it there on battery alone. Thanks again.