battery charged to 100% even though the limit was set to 85% ... just a one off?

[davehorne]

I charge my S21 Ultra every night on my wireless charger and this morning the phone was charged to 100%.  I also had to restart my phone which I thought a bit odd. 

I used the phone and waited until the battery charge was below 85% and placed it back on the charger.  This time it paused charging at 85%, as it should, since I have the setting under Battery and device care \ Battery \ More battery settings \ Protect battery enabled.

Is this just a one off?  Is this a feature and not a bug?  

Just curious.

[Ksmy89]

I thought that the protect battery feature (I have used it before on samsung tablets, not a phone however) will show the battery charged to 100% but actually its 85% of the capacity if that makes sense, sure I've had a message pop up to explain this 🤔

[Ksmy89]

I am now going to enable this on my S21 and test it out.

[Ksmy89]

So it seems this feature is different on tablets, as you can see it states that the battery will show 100% after restart but this is not the case with phones. I'd say that it's likely it was a one off 🤔

[GoanGeek]

Interesting
In pixels If you turn it on and charge overnight it will fast charge till its 85% and then trickle charge to 100% in sync with your Alarm so that you have 100% battery when you wake up.

I'd prefer that then Samsungs implemention

[GusB]

I switched this feature on as soon as it was available on one UI 4... (Was using accubattery before) and now leave it overnight with no issues. Maybe a one off in your instance but seems like a strange glitch....

[rawshooter]

I wish it worked that way for their phones too. So annoying that 50% is not half of my usage time if it starts with 85%. Always have to recalculate in my head.

[Samare]

You can use a bixby routine to to do it.
Just set it to disable battery protection a few minutes before your alarm then re-enable it.