I know I'm on borrowed time, but the battery in my '99 FXDL, bought in October, 1998, still starts the sled. Been stranded before with a dead battery, but this one has always had a battery tender on it when not being ridden. I guess time will tell. Also have a Westco from my former GL1500, bought in 1998 in the garage; always on the charger and still holding a charge.
I just replaced the battery in my jeep.
it was the original battery that came in it, its a 1998 model..
8 years on the same battery .. I may keep it and mount it on the wall between the 12 point buck head and the 18 pound bass.. 8)