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Old December 17th, 2011, 09:58 AM   #1 (permalink)
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Default Is there an App to stop battery charging when at 100% ?

Is there an App that can detect a full battery charge and essentially disconnect the phone or stop the charging?

Let's say I plug in the phone to charge when I go to sleep and by 2 am it's at 100%. Since it's not optimal to keep the phone plugged in at this point for the next 6 hours, is there an app or other way to pause or stop the charge? An auto-detect of some sort?

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Old December 17th, 2011, 10:07 AM   #2 (permalink)
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So far as I'm aware, the phone does this automatically. It may display 100%, but I gather it cuts off at 100%, and lets the power drop until 90-95% and then accepts a charge again.
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Old December 17th, 2011, 10:10 AM   #3 (permalink)
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Tasker might have something you could set?

A lot of modern batteries will stop accepting charge when they reach 100% anyway. I also know HTC handsets have it hard coded into the kernel by default to report they're at 100% when the charge is actually slightly lower (95%) so Samsung might have something similar?

Over the life of the handset though, it won't actually do the battery that much damage so there's no real harm in leaving it overnight. It's actually worse for it to drain completely.
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Old December 17th, 2011, 10:38 AM   #4 (permalink)
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Interesting. That would be great, but do we know for sure? I suppose once it's fully charged the bolt will disappear and we can assume that there's no juice going to the battery?
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Old December 17th, 2011, 10:40 AM   #5 (permalink)
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No worries, it stops charging when fully charged.
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Old December 17th, 2011, 10:42 AM   #6 (permalink)
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Great. Thanks for the info. Androidforums is the most responsive forum I have ever participated in. Great job.
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Old December 17th, 2011, 10:55 AM   #7 (permalink)
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If you want to measure what charge the battery is drawing when plugged in, place currentwidget on one of your homescreens, that will display in mAh what the battery is doing. When it says 0mAh, it's properly, fully charged. If it gets to 100% and it has a value greater than 0, then it has the overcharge protection.
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Old December 17th, 2011, 12:37 PM   #8 (permalink)
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Lightflow is a great tool for knowing your battery status without turning the screenon.

You can set it to flash (any color and speed) when it his X% (20/15/10) and to flash another color when it hits 90/95/100%.

This way you can glance at thephone and know its charged.
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Old December 17th, 2011, 12:39 PM   #9 (permalink)
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Phones have had built in technology to allow you to leave them on the charger while fully charged without causing any harm for years now. It is not something to spend a single second worrying about nowadays.
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Old December 17th, 2011, 02:33 PM   #10 (permalink)
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Quote:
Originally Posted by nashfh View Post
Is there an App that can detect a full battery charge and essentially disconnect the phone or stop the charging?

Let's say I plug in the phone to charge when I go to sleep and by 2 am it's at 100%. Since it's not optimal to keep the phone plugged in at this point for the next 6 hours, is there an app or other way to pause or stop the charge? An auto-detect of some sort?

Thanks.
It should trickle charge, so once it reaches 100% it won't keep charging.
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Old February 10th, 2014, 08:45 AM   #11 (permalink)
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Default I am looking for an App which stops charging at a customized level, eg 80%

I am looking for an App which stops charging at a customized level, letīs say 80%. Also, it would be nice if this App would start charging at, letīs say 20%. Do you know if such an App exists?
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Old February 13th, 2014, 01:13 PM   #12 (permalink)
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Default overcharging!

I have an S4. My charger does not stop charging at 100% nor will my phone stop it from over charging. My battery has swelled before and I have had to replace it.

It would be incredible if there were an app for this.

But to repeat it does over charge!
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Old February 13th, 2014, 01:14 PM   #13 (permalink)
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Quote:
Originally Posted by CarlitoKul View Post
I have an S4. My charger does not stop charging at 100% nor will my phone stop it from over charging. My battery has swelled before and I have had to replace it.

It would be incredible if there were an app for this.

But to repeat it does over charge!
That's a hardware problem that should be replaced under warranty.
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Old February 15th, 2014, 11:53 PM   #14 (permalink)
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Battery - The charging current is controlled by the charging circuit in the phone and determines how fast it charges and how hot it gets. The battery will not stop accepting current when fully charged, that is up to the charger.
Charger - If the charging current is not reduced to a trickle when the battery is fully charged the battery and AC charging transformer/supply will continue to remain hot. When the charger is operating properly ,the phone and the AC charging supply will cool down. That is a good indicator that the charging circuit is working correctly. If that doesn't happen the charger circuit in the phone or the AC charging supply is bad and the battery can be damaged by continuing to charge after fully charged. The battery will not be damaged during the overnight trickle charge. The phone should not be left on the charger for days on end.
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Old February 21st, 2014, 01:33 PM   #15 (permalink)
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My GNex stops charging at 100%. I usually find it a few percent down and not charging when I wake up.
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