I still have the original from my 07, however I bought it as a leftover in April of 09. Rode it in San Diego for about 1 1/2 yrs and here in Huntsville for about 1 1/2 yrs. Only kill it once when my bike got flooded http://www.bonnevilleamerica.com/forums/...&PHPSESSID=
Had to put it on a trickle charge over night. Other than that the positive terminal corrodes every now and then. So my question is how do I know when it needs replaced?