form 11 15 09 til theend of Feb. i had no trouble then I was at the dealer and we were playing with the code reader for 5 min. and my little batt died,the batt is good if you are in warm weather and you do more driving than you do stoping and turnning off the motor,, i replaced the 10 lb batt for a high out575 cca 24lb batt. i will post about that one soon.