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After firmware update, battery shows 100% for days.

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Finally managed to get the latest mandatory firmware update handled. It wasn't simple. 

Now my battery shows 100% several days after charging. 

Have restarted The watch. No change. Still 100%. 

What's up? Anybody got advice?

 

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The battery has to recalibrate, once it does the level will work. This update changed your full capacity level so you can't really full charge the battery. It implements a software limit as some batteries can heat up during the charge to full. YMMV

Fitbit Ionic 72.1.15 (recalled), Fitbit Sense 128.6.17 and Pixel Watch 2 BP1A.250305.019.W3, March 2025.
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