I have the original battery. When I started it up after a month it seemed to hesitate a bit. Bob got it started. It didn't take long but made me think maybe I should replace it. I don't want to get stranded. I don't know how it was stored the first 1 1/2 years. He had a carport. And put 3700 miles on it in that time. I have had it 1 1/2 years and put 16,600 miles on it. My first winter I didn't ride for 4 months. This year I rode once the day after Christmas (my birthday) in the last three months. We have had a mild winter. But in the morning it is cold and ther is black ice on the streets. By the time I get home from work it is cooling off and dark.
I can't wait to get back on it.