Originally Posted by Nachoman

About a year ago or so, I went from about 1,500 miles per charge down to about 500 miles per charge. I thought my battery was just dying a slow death. But it ended up that one of my derailleurs just needed cleaning. My mechanic said that he sees that a lot around here (we live on the coast). Anyway, after cleaning, the battery cycle went up to about 1,200 miles per charge.