S6 battery drops from 100 to 98 after unplugging fast charger.

[Electrosk8r]

This problem has just started today. I left my phone to charge after some heavy usage at about 25%. A few hours later and I unplug my phone to see it at 100%, but then suddenly it drops down to 98%. Anybody else experience this and know how to fix it? It may be a miscalibrated battery. I remember seeing a thread with a similar problem.

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[Spoderman21]

Well how long had u had that phone?

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[Spoderman21]

And do u use it alot?

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[Electrosk8r]

I've had my phone since late April. I'm a pretty heavy user I guess. I usually have to charge 2 times per day.

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[Spoderman21]

Well then the heavy usage of the the phone can wear down the battery and if that happens that means your battery is losing its capacity to hold a charge. My old phone a HTC Hero was charged to 100% then when i unplugged the charger it dropped to 48%,i had that phone for 2 years and i fixed the problem by buying a new battery

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[razza1987]

I was the one that started a thread on this exact issue. I find that if I leave my phone on the charger longer than it reaches 100% It is less likely to happen but isn't always the case. It's annoying but because I get five and a half hours of screen on time for a little over an hour charge it's just more frustrating to my ocd than my usage lol

 

[Electrosk8r]

Bump?

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[Electrosk8r]

I was the one that started a thread on this exact issue. I find that if I leave my phone on the charger longer than it reaches 100% It is less likely to happen but isn't always the case. It's annoying but because I get five and a half hours of screen on time for a little over an hour charge it's just more frustrating to my ocd than my usage lol

Also, I'll try plugging in my phone a little longer. Thanks

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[msavic6]

The means of accuratly measuring battery charge are extremely complex and are essentially estimates. With that said, your phone may report 100% battery but in reality that is an estimate which isn't correct and once your phone recalculated it adjusted the value.

Batteries do not drain linearly either thus some phones stay at a specific percentage for long periods of time. An iPhone 6+ I owned would stay at 100% even after 30 minutes of active use while another phone would stay at 1% for 15 to 20 minutes before finally losing charge. It's all a result of the nature of batteries and the inherent inaccuracy of the battery indicator.

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[Abed Ibrahim]

Same here with s6 edge...
it quickly drops from 100% to 98%, bought it on July, if the battery will lose 2% of life every 6 months or let's say 5% every year that's fine by me ; )

 

[Blacklac]

You do have to charge passed 100%. Give it an extra ~15-30 minutes on a quick charger.

This have been the case for mobile devices for years.

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[jr866gooner]

This could also be battery calibration being needed.

 

[Saros]

For me (on 5.1.1, AT&T carrier-branded), if I unplug the phone just after the LED displays green indicating a full charge, the battery drops from 100% to 98%. If I leave it plugged in a few extra minutes it remains at 100% every time. That behavior didn't occur for me on 5.0.2, but surfaced after the update to 5.1.1.

 

[Jasin B]

I have the exact same problem with my S6. I'll try to leave it a little longer and hope it'll be fixed that way. But I honestly think they messed up my battery when it went to reparation service, because I never had this problem before.

 

[Rukbat]

The state of charge is measured by the voltage across the battery terminals. Since the charging voltage has to be higher than the battery voltage in order to charge the battery, the charger voltage, at the minute the state of charge goes to "100%", is the voltage that a fully charged battery would have. But the battery itself is only charged to about 98%. That's just how lithium batteries work. Leave the charger connected for 30 minutes after the phone first says 100%. That should bring it to a real 100%. (The charge stops at 100%, but there's no way of detecting that, so just give it the extra 30 minutes. Somewhere during that time, the charge will stop.)

 

[shadowstrike]

The state of charge is measured by the voltage across the battery terminals. Since the charging voltage has to be higher than the battery voltage in order to charge the battery, the charger voltage, at the minute the state of charge goes to "100%", is the voltage that a fully charged battery would have. But the battery itself is only charged to about 98%. That's just how lithium batteries work. Leave the charger connected for 30 minutes after the phone first says 100%. That should bring it to a real 100%. (The charge stops at 100%, but there's no way of detecting that, so just give it the extra 30 minutes. Somewhere during that time, the charge will stop.)

This. I noticed this happening on my S6 too, but if you look closely, there is still a small lightning symbol on the battery to indicate a "charging" state even when it says 100% full, which means it really isn't done charging yet. I do believe the red light also stays on even when 100% first appears. When your battery is fully charged, the LED indicator turns green and the lightning symbol disappears, which indicates that the battery is full.

 

[Tf1997]

Hi my phone is doing the same thing, i was wondering do you still have this problem?

 

[B. Diddy]

Hi my phone is doing the same thing, i was wondering do you still have this problem?

See response in your other thread: http://forums.androidcentral.com/ba...ay-fuly-charged-when-its-not.html#post5179247

 

[edzilla_2000]

Hi, I'm a heavy user to. This means that this happens because I use my phone a lot? Not because the battery is damaged?