Battery replacement

Why would you need a new battery after a year?? I've had my watch nearly a year and the battery is as good a my first charge. I expect it will be for years to come. I'm sure if you really needed it, Garmin could replace the battery, but I'm guessing it wouldn't be cheap.

Max

You should get at least 500 charging cycles so if you charge it once a week it should last ten years

You should get at least 500 charging cycles so if you charge it once a week it should last ten years

Yep - due to the way these batteries work, it doesn't charge and recharge the same area of the cell over and over again; it spreads the charge cycle around to different locations on the battery, so if you're talking about a 0-100% charge once a week, you're right. If you're like me and charge it when it hits 50% twice a week, I'd get the same 10 years as the person who charges it once a week from 0-100%.

It's pretty cool. It's also why phone batteries don't last nearly as long as something like this watch, as most people kill their battery in full once a day (or at least get it down to 30-40% once a day).

There's no possible way anyone could notice a seriously diminished battery in one of these watches after only one year, unless the watch was seriously abused in some way (left out in the desert sun all day, etc.)

Yes, my wife's first Forerunner from 2009.... battery was working just fine at the end of its life this spring. Replaced for features/looks... not battery after 7 years. My cheapo FR10 was replaced after a couple years due to bad cable and features... battery was fine.