Join Date: Apr 2011
Location: Brookfield, MA
Thanked 438 Times in 281 Posts
I still have the original battery in my 2011, so it's going on 8 years now.
It's never failed to start on the first crank, but I have ALWAYS kept it on a charger - whether it's stored in my unheated shed for 3 to 4 months during winter, or if it's just sitting for a day or two during riding season.
If it's not being ridden it's on the charger.