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How bad is overcharging?

Exactly how much worse would my battery get if I keep it plugged in the whole night(6~8hours)?
I tried to use my phone where I'll have it fully charged when I go to sleep so I plug it out. But sometimes my battery is at about 30% so I just charge it overnight.
How bad is this? Should I stop doing this?
Sent from my phone

the charging system WONT overcharge your battery.
it charges to 100%
turns off lets the phone use battery power to 95%
then charges again.
there is NO PHONE, NO CHARGER that would over charge its battery, that would just be self destruction.

Sweet, always wondered about that
Sent from my SAMSUNG-SGH-I897 using XDA App

:
Trusselo said:
the charging system WONT overcharge your battery.
it charges to 100%
turns off lets the phone use battery power to 95%
then charges again.
there is NO PHONE, NO CHARGER that would over charge its battery, that would just be self destruction.
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Really? So it doesn't matter?
Anyone thanks
Sent from my phone

While it is impossible to overcharge your batter...not even sure what that means but the battery can not hold more charge then it is made to hold.
The only downside to leaving the phone on the charger overnight is that it will over time degrade the capacity of the battery. The way most modern phone batteries function they gradually loose capacity over time. This lose of capacity is accelerated the when the battery is at a greater charge level.

crystalhand said:
While it is impossible to overcharge your batter...not even sure what that means but the battery can not hold more charge then it is made to hold.
The only downside to leaving the phone on the charger overnight is that it will over time degrade the capacity of the battery. The way most modern phone batteries function they gradually loose capacity over time. This lose of capacity is accelerated the when the battery is at a greater charge level.
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I'm sorry..
My overcharging meant that I charge it for a long time.... sorry about that
Sent from my phone

Like Trusselo said, you can't overcharge it. There's a smart charger built in, that charges full and drops it back to extend battery life.
If you watch the supply with an ammeter, you'll see the current slowly decrease as it gets closer to full. Then when the "Battery is Full" notification appears, the current will immediately drop to 0 indicating that the charger has completed and it's running on battery. At that point it resets the stats to 100%. After it consumes about 5% (actually something like 4100mV) it will switch back to external power and only monitor the battery.

Oh strange. Nexus one does it different. When fully charged it runs off the AC current if still plugged in and battery remains charged

CuriousTech said:
Like Trusselo said, you can't overcharge it. There's a smart charger built in, that charges full and drops it back to extend battery life.
If you watch the supply with an ammeter, you'll see the current slowly decrease as it gets closer to full. Then when the "Battery is Full" notification appears, the current will immediately drop to 0 indicating that the charger has completed and it's running on battery. At that point it resets the stats to 100%. After it consumes about 5% (actually something like 4100mV) it will switch back to external power and only monitor the battery.
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So conclusion is
Charging it overnight will decrease my battery life so I shouldn't do it?
Sent from my phone

syl0n said:
Oh strange. Nexus one does it different. When fully charged it runs off the AC current if still plugged in and battery remains charged
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Interesting since that would be bad for the battery. What are your methods for determining this?

bluemoon1221 said:
So conclusion is
Charging it overnight will decrease my battery life so I shouldn't do it?
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No. It's not charging overnight. The phone stops charging when it's full.
Sigh...
To get a better understanding of why your phone will never overcharge the battery go to youtube and type in "overcharging li-ion" or better "overcharging lipo" for some entertaining videos.

CuriousTech said:
No. It's not charging overnight. The phone stops charging when it's full.
Sigh...
To get a better understanding of why your phone will never overcharge the battery go to youtube and type in "overcharging li-ion" or better "overcharging lipo" for some entertaining videos.
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That's what I meant.... I'm saying will keeping it plugged in for 7 hours decrease my battery performance? .......
Sent from my phone

Okay then. I know these are lead, mercury and cadmium free but it might be too late.
You should do what gives you peace of mind, and be sure to read and follow all safety precautions for the products you own.

bluemoon1221 said:
That's what I meant.... I'm saying will keeping it plugged in for 7 hours decrease my battery performance? .......
Sent from my phone
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NO!!!!!!!!!!!!
everyone is trying to tell you NO!!
keeping it charging over night will do NO dammage and will not hurt performance.

I've always wondered about this.. thanks!
Sent from my SAMSUNG-SGH-I897 using XDA Premium App

Trusselo said:
NO!!!!!!!!!!!!
everyone is trying to tell you NO!!
keeping it charging over night will do NO dammage and will not hurt performance.
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Up in one of the reply by crystalhand
He said that it will degrade the capacity of the battery.??
Am I interpreting this the wrong way? Or is he wrong?
Sent from my phone

[Q]Charging the brand new Incredible S

Hi
I have a question about charging the phone when I first get it. I wanna maximise the battery life. But usally when I first get the phone, the battery has a bit of charge. I've been told to charge 8hours.
So do i drain the remaining battery and charge 8hours with the power on
or
Do I charge it straight away even though its not low battery for 8hours
Or do I just charge it till the battery is full?
Thanks

drain it completely, than put it on the charger for like 8-12 hours
drain max again
charge it long time again
drain max again
charge it and your done
this will give u the max result of your battery

Thank you very much. I shall try that, Should I Leave it on while charging?
Is it okay to play around with the phone while it is charging?

Hawkysoft said:
drain it completely, than put it on the charger for like 8-12 hours
drain max again
charge it long time again
drain max again
charge it and your done
this will give u the max result of your battery
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Click to collapse
1; There is no need to do that with current technology batteries.
2; Once the battery reaches 100% it doesnt charge or do anything else.. so useless to leave it in for 8-12 hours.

I second TimMun.
The process of charging the battery for 8 hours is for old batteries...
and i believe even that was a myth.. apparently the concept was that the acid in the battery needs to be charged for a LONG time for maximum efficiency.
I think you are good to go once the new battery shows full charge..

Hmm wonder what was in my study about batterys, well do w/e u like, i know a bettery has a memory which only can be reset by a deadly shock which can be fatal
Sent from my HTC Incredible S using XDA Premium App

My HTC One just got here. Do I need to charge it fully?

Or do I need to let it die completely before charging? What do I need to do?

melted_cow said:
Or do I need to let it die completely before charging? What do I need to do?
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no just use it

melted_cow said:
Or do I need to let it die completely before charging? What do I need to do?
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use it fully untill it drains completely, then charge it to 100% , then use it fully 2 or 3 times and fully charge it.
then just use it like normal and charge like normal

Phil750123 said:
use it fully untill it drains completely, then charge it to 100% , then use it fully 2 or 3 times and fully charge it.
then just use it like normal and charge like normal
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Click to collapse
That's an interesting dance that hasn't been relevant for over a decade. Interesting that you got a thanks but the correct answer didn't.

Phil750123 said:
use it fully untill it drains completely, then charge it to 100% , then use it fully 2 or 3 times and fully charge it.
then just use it like normal and charge like normal
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Click to collapse
Please do not follow this advice. This used to be the best way to stop NiCad batteried from developing low capacity 'crystal memory' but it is not the case with LiOn or LiPo batteries, in fact, quite the opposite. Doing as he recommends is much more likely to damage the battery and even start a fire.
A LiPo shouldn't be discharged by more than 80% if at all possible. If you want to know more there are a lot of links on the interweb but here's a typical thread on stack exchange .. and a quote from it ...
http://android.stackexchange.com/qu...-first-time-charging-on-li-ion-batteries-myth
Nowadays, batteries are often Lithium-Ion or Lithium-Polymer and such batteries (as I have read many times and based on my own experience) would be stronger if you charge them often. The first time charging and "wait-until-full-discharge-before-recharge" and "don't-use-when-charging" are not applicable to these modern batteries.
Li-Ion and Li-Polymer batteries, if charged often, after about 1 month, would reach to their maximum performance, and you are recommended to charge them every time you find an outlet!
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and another ... http://android.stackexchange.com/qu...e-battery-discharge-fully-or-as-low-as-possib

radiotrib said:
Please do not follow this advice. This used to be the best way to stop NiCad batteried from developing low capacity 'crystal memory' but it is not the case with LiOn or LiPo batteries, in fact, quite the opposite. Doing as he recommends is much more likely to damage the battery and even start a fire.
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Wow, now we have the Richard Dawkins of battery advice. Well done.
Can everybody just calm the funk down and charge their batteries as and when they see fit? It's fine. Either way.
There is circuitry inside the battery that will prevent them from over charging, under charging, over discharging catching fire and generally behaving badly. There is also no memory effect. Just charge them when you think you'll need them.

Yeah just keep using it, if one day in the distant or not-so-distant future it doesn't turn on for some reason and/or seems unresponsive, it might need charging.

Phil750123 said:
use it fully untill it drains completely, then charge it to 100% , then use it fully 2 or 3 times and fully charge it.
then just use it like normal and charge like normal
Click to expand...
Click to collapse
BenPope said:
Wow, now we have the Richard Dawkins of battery advice. Well done.
Can everybody just calm the funk down and charge their batteries as and when they see fit? It's fine. Either way.
There is circuitry inside the battery that will prevent them from over charging, under charging, over discharging catching fire and generally behaving badly. There is also no memory effect. Just charge them when you think you'll need them.
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Hmmm .. shows how out of date I can get ... I didn't realise that the overcharge protection had reached such a state of sophistication ... Personally I never bothered with battery regimes, even in the bad old NiCad days ...
Thanks for the correction.

The overcharging prevention was first introduced to the Sensation and EVO 3D phones. I remember when I started seeing it because I would leave for work, and sometimes my battery wasn't charged fully. What it was doing was charging to 100%, then stops charging and will let it discharge 5%, then start charging again. And it would keep doing it until I took it off the charger. I've yet to see my EVO 4G LTE do that, though. Maybe it's been refined so that we don't notice it as much?

eXplicit815 said:
The overcharging prevention was first introduced to the Sensation and EVO 3D phones. I remember when I started seeing it because I would leave for work, and sometimes my battery wasn't charged fully. What it was doing was charging to 100%, then stops charging and will let it discharge 5%, then start charging again. And it would keep doing it until I took it off the charger. I've yet to see my EVO 4G LTE do that, though. Maybe it's been refined so that we don't notice it as much?
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Click to collapse
Wrong. Even early smartphones had overcharging protection. My old HTC Desire definitely had it.

BenPope said:
Wow, now we have the Richard Dawkins of battery advice. Well done.
Can everybody just calm the funk down and charge their batteries as and when they see fit? It's fine. Either way.
There is circuitry inside the battery that will prevent them from over charging, under charging, over discharging catching fire and generally behaving badly. There is also no memory effect. Just charge them when you think you'll need them.
Click to expand...
Click to collapse
On the note of over-discharging: just because there is circuitry inside the battery to prevent over-discharging doesn't mean you should ever let your phone run down to (what your battery shows as) 0%. Yes, the phone will generally shut off when the battery is left at around 3v, but it's still possible to force turn your phone on (which you should never do) after that point. Not to mention, leaving the battery at a low voltage for a significant period of time WILL affect the overall lifespan of the battery. Battery manufacturers will do what they can, but there is really no such thing as "true" over-discharge protection, as with overcharge protection, since batteries will still lose charge even when not in service.
Yes, if you let your battery run down to (what your phone shows) 0% occassionally, that is OK. But you should really only be doing that if and only if you need to re-calibrate for cell mismatches.

Hah! I still remember when I bought a mugen battery the instruction clearly says to discharge it fully and charge it fully for like 5 times to get optimum capacity Obviously I didn't do it. I am much aware of these things since good old Nokia 3310 days.

Overcharging??

Is overcharging the battery good or bad?
Sometimes i leave the phone on charging for abt 3 and haf hour.
Will it cause battery drains or battery health problems in future?
Thanks

dipesh1502 said:
Is overcharging the battery good or bad?
Sometimes i leave the phone on charging for abt 3 and haf hour.
Will it cause battery drains or battery health problems in future?
Thanks
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Given in SONY manual: Charging your device over a long period of time, for example, overnight, does not damage the battery or the device.

madhukarmohan said:
Given in SONY manual: Charging your device over a long period of time, for example, overnight, does not damage the battery or the device.
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Actually i have never read the manual
Thanks

New devices had protection that you cant overcharge your phone.
When batery goes to maximum capacity phone will stop charging your batt and will hold this capacity without charging battery.

dipesh1502 said:
Is overcharging the battery good or bad?
Sometimes i leave the phone on charging for abt 3 and haf hour.
Will it cause battery drains or battery health problems in future?
Thanks
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Click to collapse
Short answer: No, but not recommended.
Long answer:
All good quality phones have anti-overcharge circuitry within. So, in theory, there would be no bad effect.
However, the circuitry might be degraded, so there might be a (small) chance your battery will be overcharged.
In addition, the system might be working 'harder' knowing it's connected to AC Power, meaning higher heat generation. And heat is a battery's worst enemy.
So, even though occasional overnight charging is acceptable, one should avoid doing that. Instead, charge the battery every time you have the opportunity to. Since Li-ion battery has no 'memory effect', that is what one should do, actually.
(Of course, every now and then -- say, once a month -- you should charge the battery until full then let it drain until the phone shuts down automatically. This is to 'reset' the phone's battery watcher calibration).
Sent from Sony Xperia SP C5302 (stock, rooted, locked BL)

Charging question

Hello guys, I'm not too deep into the smartphones stuff, and I wanted to know if I should use my cellphone while it's charging.
I don't know if it can damage the battery or mess up with the fast charge.
Hooping for good answers, thanks

Doesn't matter anymore. Smartphones are now smarter than ever when it comes to battery. What's unhealthy for the battery is if you constantly drain it to zero and then charge to 100%, which won't happen to the P10 because it will automatically shut down at 2%.

ej8989 said:
Doesn't matter anymore. Smartphones are now smarter than ever when it comes to battery. What's unhealthy for the battery is if you constantly drain it to zero and then charge to 100%, which won't happen to the P10 because it will automatically shut down at 2%.
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Thank you very much, one last question, at what battery level should i charge my phone? Thanks

Gonzalo74115 said:
Thank you very much, one last question, at what battery level should i charge my phone? Thanks
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Summarizing, the less the battery discharges , the better.