alt Hacker News> strava.com : Login works now that Navigator.getBattery throws the spec-mandated error type instead of one of our own (#8770).
what’s Strava want with my battery level?
Replies
NBPEL • today at 1:38 AM
Most likely for generating unique fingerprint for tracking
charcircuit • yesterday at 10:55 PM
Bots trying to brute force accounts may not have the API implemented like a real device may.
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Maybe it uses some that battery API as a heuristic for a lower-power version of the site? Or maybe they have a web-only version in developing markets? Low battery means it should query for your location less often to save battery?
Totally spitballing here. Strava being a website that requests battery does not seem wildly outlandish to me, albeit it is a bit suspicious in general.