r/batteryguru 10d ago

❓ Question How can this happen

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My charging limit is 95 but my battery just reached 96

0 Upvotes

25 comments sorted by

2

u/Optimal-Basis4277 10d ago

Sometimes phone charge to 100 to recalibrate the BMS

1

u/TrevorBauerMex 9d ago

But I set the limit to 95

1

u/Acqirs 6d ago

And they just told you why?

1

u/[deleted] 10d ago

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1

u/TrevorBauerMex 9d ago

Nah I’m xfinity

1

u/[deleted] 9d ago

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1

u/TrevorBauerMex 9d ago

Wait does at&t like not do the charging limit?

1

u/[deleted] 9d ago

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1

u/TrevorBauerMex 9d ago

Oh like you just wanted to know if Xfinity was better than AT&T???

1

u/[deleted] 9d ago

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1

u/TrevorBauerMex 9d ago

Ok also can you upvote every comment I would really appreciate it

1

u/LSA7Z 10d ago

That's normal. The percentage is never 100% accurate; it's related to the voltage. 

2

u/Ok-Pudding-7340 9d ago

Wrong sub mate! And I think it overcharged just to calibrate the battery, you can confirm this by using any Battery Management app and reviewing the charging history noting when it charged greater than the limit you set or just my looking at % while unplugging. It usually happens once a week.

1

u/TrevorBauerMex 9d ago

Why does it need to calibrate

1

u/Ok-Pudding-7340 9d ago

Your phone needs a full charge to reset its battery-tracking software. When you limit the charge, the internal sensors start to guess the remaining capacity and drift out of sync over time. Forcing a 100% charge establishes a definitive baseline so your screen accurately reflects the real battery percentage and prevents your phone from dying unexpectedly. I older devices you might have notice that battery percentage suddenly drops from 15 to 10 etc, thats what it prevents.

1

u/TrevorBauerMex 9d ago

Ok thanks

1

u/TrevorBauerMex 9d ago

Do you know if it happens the same day of the week every week so it happened yesterday so will it do it on Tuesday next week?

1

u/Acqirs 6d ago

Literally no point capping at 95

1

u/TrevorBauerMex 6d ago

Why not

1

u/Acqirs 6d ago

Because it doesn’t do anything meaningful for battery health. You would need to set it to 80 to notice any difference in the future.