this post was submitted on 04 Dec 2024
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Google recently brought a charging limits feature to Pixel phones, and the company quietly revealed that it occasionally ignores this toggle.

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[–] donuts 27 points 9 hours ago (2 children)

The reason:

This is done to “recalibrate” estimated capacity. In other words, your phone needs a full charge so you can get accurate data regarding estimated battery life and to prevent any issues/bugs.

[–] [email protected] 8 points 7 hours ago

Yep 100%. On my Zenfone 8 at first I blocked the battery to 80% and quickly I found the battery got very short. All I had to do to fix the issue was a full battery cycle (100-0-100). What I noticed doing this is that it lasted for an absurd amount of time at 1% which indicates me that it was decalibrated. After the procedure the battery life was more at normal levels again

[–] [email protected] 4 points 8 hours ago (1 children)

Batteries are already limited by their own controller, so this makes sense. Further limits really only make sense for devices that spend all their time on a charger.

[–] [email protected] 3 points 3 hours ago

I would tend to disagree with that as I've had devices in the past that I let charge to 100% and would notice battery degradation very quickly and with my current device I've kept my charging at 80% and my battery has done really well. I cycle my battery between 80% and 30% usually and sometimes it will get down to like 25% before I plug it in.