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Old December 7th, 2010, 09:47 AM   #1 (permalink)
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Default Why unplug when done charging?

When my Captivate is "topped off" it pops up a message - Your phone is fully charged. Please unplug your device.

Why does it give this message? Can't I just leave the phone on shore power when I can? Is there a way to turn off this notification?

It's particularly annoying when in the middle of the night it pops up over my alarm clock...

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Old December 7th, 2010, 09:56 AM   #2 (permalink)
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Glad you're asking this as I've wondered the same thing.

It's my understanding that in addition to not suffering from the "memory effect" like NiCd, that they likewise cannot be "overcharged".

So I'll echo the "why disconnect?" question and if there's no good reason to, "how can we disable the notification to do so?".

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Old December 7th, 2010, 09:58 AM   #3 (permalink)
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I think it's simply a "courtesy" notification, like of you were waiting around to make sure your phone has a complete full charge. It also does it a few minutes after the indicator hits 100, so it's like it confirming a real, 100% total charge.

Hahaha, I have a Growl notification that pops down at the top of my screen notifying me
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Old December 7th, 2010, 09:59 AM   #4 (permalink)
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It's not gonna hurt your battery. I believe it means that it's OK to unplug it now that the battery has charged completely.

These devices have built-in circuitry to prevent damage to battery by over charging.
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Old December 7th, 2010, 11:27 AM   #5 (permalink)
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that is interesting as I've never gotten a message like that before. I always charge it overnight and when I wake up, it says 100%...
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Old December 7th, 2010, 11:39 AM   #6 (permalink)
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I've also noticed that this message lies. I've gotten this message and unplugged the phone and the battery widget would immediately drop down to 98%.
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Old December 7th, 2010, 11:49 AM   #7 (permalink)
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It's sorta like when you've finished inflating your car's tire and you pull the chuck away from the stem. You lose a little air.
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Old December 7th, 2010, 11:54 AM   #8 (permalink)
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It's sorta like when you've finished inflating your car's tire and you pull the chuck away from the stem. You lose a little air.
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Old December 7th, 2010, 11:57 AM   #9 (permalink)
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It's sorta like when you've finished inflating your car's tire and you pull the chuck away from the stem. You lose a little air.
Haha, true!
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Old December 7th, 2010, 11:57 AM   #10 (permalink)
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I've found that the faster I pull the charger out of the phone's USB connector, the less juice I lose.

Maybe this should go under "Tips and Tricks."
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Old December 7th, 2010, 12:39 PM   #11 (permalink)
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Originally Posted by iffrett View Post
that is interesting as I've never gotten a message like that before. I always charge it overnight and when I wake up, it says 100%...
I'll be you charge it when off off then. I charge mine overnight while on, and always have the message in the AM. I agree that it is just a reminder and no harm can be done to keeping it plugged in beyond the motice.
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Old December 7th, 2010, 07:22 PM   #12 (permalink)
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So, can anyone advise me how to turn off this annoying notification, so that it doesn't wake me up at 2 or 3 every morning?
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Old December 7th, 2010, 08:22 PM   #13 (permalink)
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This class of phone manages power just like a laptop.

When the phone's fully charged, it starts running off of the battery - otherwise, battery damage will result.

There's some secret low-mark that the phone will hit before the charging cycle starts again. It varies by make and model and has been known to go as low at 92% (mine is 93% for example - I've read yours is 95%).

So - once fully charged - the phone is using battery to sync data, get email, etc, etc.

You unplug it, and suddenly see a drop, making you think something's wrong - there's not - this is just standard operating procedure.

Can't help on the notification - I believe that's permanent unless you root.

However - go to Sound & Display under settings and try turning it off if it's listed under Audible Tone Settings.

For nighttime/sleeping comfort - put your phone in silent mode, unless you need it otherwise noisy.
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Old December 7th, 2010, 08:23 PM   #14 (permalink)
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Quote:
Originally Posted by Lincoln4 View Post
So, can anyone advise me how to turn off this annoying notification, so that it doesn't wake me up at 2 or 3 every morning?
I have 2 suggestions:.

1-Don't charge it at night if you want the device close to your bedside

2-If you want to charge at night, leave it in another room.

3-Get a spare battery and external charger so you just have to swap the battery and charge the other one at your leisure.
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Old December 7th, 2010, 08:28 PM   #15 (permalink)
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Originally Posted by fldude99 View Post
I have 2 suggestions:. <----

1-Don't charge it at night if you want the device close to your bedside

2-If you want to charge at night, leave it in another room.

3-Get a spare battery and external charger so you just have to swap the battery and charge the other one at your leisure.
Which 2 were suggestions? What was the third?
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Old December 8th, 2010, 02:32 AM   #16 (permalink)
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the purpose of this message is Samsung gs attempt to shoe it cares about the enviorment.

notice the leaf symbol.

unplug your charger..save energy.

lame.
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Old December 8th, 2010, 05:27 AM   #17 (permalink)
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Hmmm.I've always been too groggy to notice. Interesting.
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Old December 8th, 2010, 08:06 PM   #18 (permalink)
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Anyone else notice that the screen on the Captivate also turns on when the the battery is charged enough to no longer be in the Yellow?
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Old December 11th, 2010, 05:08 AM   #19 (permalink)
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Quote:
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So, can anyone advise me how to turn off this annoying notification, so that it doesn't wake me up at 2 or 3 every morning?
Turn the sound notifications off.
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Old December 20th, 2010, 01:29 PM   #20 (permalink)
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Does the sound notification turn off the visual notification? That's the part I don't like. Waking up at 4 AM and instead of seeing a time on my clock, a notification that my captivate is fully charged, so I better unplug it, bucko.
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Old January 13th, 2011, 10:27 PM   #21 (permalink)
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Quote:
Originally Posted by EarlyMon View Post
This class of phone manages power just like a laptop.

When the phone's fully charged, it starts running off of the battery - otherwise, battery damage will result.
Oh really? I guess this just shows how much I don't know about technology. I thought that at full charge, your phone (or laptop) would continue to run on the "juice from the outlet" until you unplug it, to save your battery.

But looking at it your way, it makes much more sense why a notification would pop up asking you to unplug.

@Original Post: I don't see how / why you would continue to let the message wake you up. Lol silent mode man.
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Old January 13th, 2011, 10:47 PM   #22 (permalink)
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Oh really? I guess this just shows how much I don't know about technology. I thought that at full charge, your phone (or laptop) would continue to run on the "juice from the outlet" until you unplug it, to save your battery.
They used to do all of the obvious things - such as you describe, and then at the same time provide a trickle-charge to offset that any battery doing nothing (such as when it's 100% and you're using the wall power) will start to discharge. That's how the old batteries and charging systems worked, from what I've read.

I've read the change is all due to the new battery tech - but in the back of my mind, I'm sure it has to do with safety and reliability and liability - remember those burning laptop batteries from just a few years back.

It's my understanding that overcharging a lithium-ion battery WILL cause it to catch fire. Curious, we forced one into ignition in a lab setting - those things don't just burn - they literally burn like a blowtorch.

No doubt this whole new scheme avoids that by design.
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Old January 14th, 2011, 06:28 AM   #23 (permalink)
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I left mine on the charger over night and now that notice is burned in my screen.
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Old January 15th, 2011, 10:05 PM   #24 (permalink)
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I (purposely) left mine phone on the charger longer than it wanted to be on the charger last night. Surprisingly, after unhooking it, the battery percentage stayed at 100 and in the high 90's and 80's way longer than it usually does. a.k.a. it seemed like a plus to me. Is this technique damaging my phone or its battery?
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Old January 15th, 2011, 11:21 PM   #25 (permalink)
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I have great confidence in Samsung's power control circuitry - unless completely defective, your battery's fine.

Power on the battery, while on the charger, if graphed would look kinda like a roller-coaster. Once it hits 100%, it'll run on battery until it hits Samsung's decision for the low point, then it charges to full again, and so forth. The speed and shape of this is controlled by each user's background / running processes (such as mail syncing, whatever) - so yes, it's totally possible to take it off early and have more power - or to take it off late and have more power.

Murphy's law says that every person always lucky and getting 100% after leaving it on for a while after full charge, there's a matching guy who's always at 95% or so.
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Old January 16th, 2011, 12:36 PM   #26 (permalink)
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Quote:
Originally Posted by mnemonicj View Post
Anyone else notice that the screen on the Captivate also turns on when the the battery is charged enough to no longer be in the Yellow?
Ugh, it took me an age to figure out what was going on there. I'd be sitting here at my desk with my phone charging in front of me, and the screen would pop on. I'd pick it up, assuming something interesting was happening, only to be disappointed.

Curious as to why it does this...

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I left mine on the charger over night and now that notice is burned in my screen.
Not to go anymore off topic, but I have a similar problem with burn in. If I ever miss an alarm, when I come back and unlock there is this large circular shadow (the outline of the clock). It varies on how quickly it fades, but so far it always has. I'm still paranoid that one day it wont.

Is this something I should worry about? I would hope not, with all the hype of the SAMOLED.
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Old January 16th, 2011, 03:21 PM   #27 (permalink)
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I left mine on the charger over night and now that notice is burned in my screen.
Same thing has happened to my screen.
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Old January 16th, 2011, 07:51 PM   #28 (permalink)
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Originally Posted by pyrobob4 View Post
Ugh, it took me an age to figure out what was going on there. I'd be sitting here at my desk with my phone charging in front of me, and the screen would pop on. I'd pick it up, assuming something interesting was happening, only to be disappointed.

Curious as to why it does this...



Not to go anymore off topic, but I have a similar problem with burn in. If I ever miss an alarm, when I come back and unlock there is this large circular shadow (the outline of the clock). It varies on how quickly it fades, but so far it always has. I'm still paranoid that one day it wont.

Is this something I should worry about? I would hope not, with all the hype of the SAMOLED.
Mines been burned for a week now. Eff super amoled.
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Old January 17th, 2011, 08:01 AM   #29 (permalink)
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I notice that when I put my phone into landscape mode, I can see a line down the left edge which is a shadow of the notification bar from portrait mode (the orientation I use the most). So that does seem to be burned in. Maybe if I stayed in landscape long enough, it would wash away, but I never do. I'm not too concerned about it, since I normally use portrait so I don't see it anyway.

But how are you guys getting the power notification burned in? Do you leave the screen on while it's charging? I charge mine overnight with the screen off, and have never had that problem. Oh, and it's always at 100% when I unplug it in the morning too. It's usually still at 100% an hour or so later when I get to work.
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Old April 5th, 2011, 08:10 PM   #30 (permalink)
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Just upgraded to 2.2 and found that the option to turn off the screen automatically at full charge is gone and the screen will stay on until the on off switch is pushed. Not convenient as my phone is required to be a on 27/7/365. First, if I wake up in the night the screen is on and I have to get up to turn it off. I also fear that the screen might fail from it being on every night. I can schedule around this most of the time but there should be a way to keep the screen off.

If anyone has ideas or knows on an app I would be grateful.
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Old April 5th, 2011, 09:02 PM   #31 (permalink)
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I'm not sure but im using the Rogers version of the Captivate i896 and there's nothing like that yeah it'll vibrate and tell me that the battery is charge but the display will turn off too.
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Old April 6th, 2011, 09:48 AM   #32 (permalink)
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I am using the AT&T 2.2 that just came out and I get the vibration, the notification sound(neither of which I care about) but then the screen stays on until I turn it off.
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Old April 6th, 2011, 10:00 AM   #33 (permalink)
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I am using the AT&T 2.2 that just came out and I get the vibration, the notification sound(neither of which I care about) but then the screen stays on until I turn it off.
I too have the AT&T Froyo upgrade, but my phone screen does not come on when fully charged. Instead of the pop-up box, it now shows a small full-charge icon in the notification area on the left side. In fact, my screen would stay off even with 2.1. I would only see the full-charge notification when I unwoke the phone in the morning when pressing the power button. Not sure why these other phones are behaving differently than mine???
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