I have a 2005 Duc 749 bi posto and I found out the battery is toast today. 1st of all can anyone recomend a certian battery or are they all the same? 2nd I jumped the old battery today and took the bike for a ride hoping it would charge the battery and it didnt it just kept reading 9.8. The bike ran fine for my 30 min ride but rigth when I was pulling into my house the check engine light went on, would this happen because the battery is low? Why was it not on when I was riding (the battery volts read the same the whole time) ? Any help would be awesome, as my ducati dealer is quite a distance from my house.