My CTX is a 2014 and has the original OEM battery in it still. No problems with it at all. But, being aware that it's three years old (at least) and not wanting to get stuck out on some rural road I'm wondering when I should replace it proactively. Anyone with experience in having a battery fail? How long did yours last? What did you replace it with? When not on the road, mine is garaged which keeps it protected from the cold, but nothing can protect it from the summer heat that it endures while riding which often exceeds 100 degrees.