I have an 05 FXHO Cruiser and bought a new Odyssey PC625 battery last summer for it. Everything was great until recently. I keep the ski at a local marina (on a jetdock) and have for the past 5 years. The past three times I've gone out, the battery has been dead. But the last two times, I got jumps from the marina folks and was able to enjoy my day. Last w-end was another story. It would jump right off, idle fine but if you increased the throttle it would cut out about 10-20secs into it and you'd get that typical, "click click click" when you tried to restart it. We tried 4 times with the same result. I pulled the battery (12v) and took it by the auto parts place to have it tested. It had 10v so it wasn't completely dead. They are trickle charging it for me right now to see if it holds a charge but I would think 10v would be enough to crank it up but that's why I'm here--does anyone know why it would be doing this? I did not change the spark plugs this year (but have each yr) and I'm wondering if I should or would that be a waste of time. My boyfriend thinks I just have a lemon battery and should buy another-- any ideas?? thx!!