I also bought a CooSpo around then, it died the weekend before last but it got around 800 hours at a guess. It would power up and then 5secs later power down, I tried a new battery anyway, a new strap and rigorously cleaning (it was always wiped down anyway and was clean already), no success. Overall though I think it was a good piece of kit no other HRM has done any better (apart from the original hard strap garmin) and some more expensive soft strap HRM’s have lasted a lot less.
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