Joined
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1,936 Posts
2023 MI/KM:
45,765
Our alarm backup batteries have a 10 year shelf life. Not really sure how long they last in the bike. After 6 years, I changed mine today. 90 mins start to finish and that included cleaning every part as it came off the bike. Wouldn't want a 3 dollar battery sticking me on the side of the road on a long ride.