Last weekend I had a really strange experience with my Fairphone 2: I was out looking for a geocache (so I had the c:geo app running, as well as OsmAnd, GPS enabled). Initially, the battery was at about 50%. I had a very bad GPS reception for the first half hour or so, and only occasionally turned…

My last feature phone did stuff like that occasionally (well, not that dramatically, but still). Taking the battery out and putting it in again used to fix this for a while every time, so I betted on either the battery becoming not properly seated over time or the battery simply being broken somehow…

My phone has occasionally lost power dramatically overnight, with nothing obvious going on.

Well, my FP2 has also a non-smooth battery indicator. Over 25 %, the discharge is “normal”. But below 25 %, it goes down by 1 % per 20 seconds. Maybe the battery indicator is not calibrated correctly.

This was just a one-time thing so far; typically the indicator works quite fine. So I don’t think it’s a calibration issue for me, but thanks for the input anyway!

I’ve had things like that at times when using Maps.Me . I once lost 10% in an instant, or at least so it looked in the battery stats. Using the normal OS but with Google’s location via wifi disabled.

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