Database Develop

Does leaving plugged in harm battery?

I turn my phone on Airplane mode and unplug at night while I'm sleeping.
BUT! When at work and at home at other times, is it bad to leave it plugged in 100% of the time? (I.E. does it decrease total battery life over a few years to be constantly charging.)
Or is it better to unplug ASAP when it hits 100% and let it drop to 20-30% and recharge-unplug-recharge-unplug etc? (If so, how much of a difference would this make?)
And does it matter USB vs AC source? I know USB is half the amps, so this could have an effect too?

Honestly, the battery is going to deteriorate a bit either way over a year time span. It is probably best if you just replace the battery every year.

Paul22000 said:
I turn my phone on Airplane mode and unplug at night while I'm sleeping.
BUT! When at work and at home at other times, is it bad to leave it plugged in 100% of the time? (I.E. does it decrease total battery life over a few years to be constantly charging.)
Or is it better to unplug ASAP when it hits 100% and let it drop to 20-30% and recharge-unplug-recharge-unplug etc? (If so, how much of a difference would this make?)
And does it matter USB vs AC source? I know USB is half the amps, so this could have an effect too?
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Doesn't matter. All you need to really be worried about is that you leave it on the charger long enough to get a true 100% charge, and you don't always put it on when at 80%, try and run it down from time to time to 10% type thing.
If you leave it on the charger 24/7 for a year, it will have no real effect on the battery that a year of use wouldn't do, and you might actually come out ahead since battery life times are based on charge cycles... when on charger, as you are asking about, there would be virtually no charge cycles.

pjcforpres said:
If you leave it on the charger 24/7 for a year, it will have no real effect on the battery that a year of use wouldn't do, and you might actually come out ahead since battery life times are based on charge cycles... when on charger, as you are asking about, there would be virtually no charge cycles.
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Ooooh, interesting... Did not know that. I thought that leaving it charging was the worst case possible.

But let's be honest.
How long do you think you'll keep the phone?
I've never had one more than a year...

Amdathlonuk said:
But let's be honest.
How long do you think you'll keep the phone?
I've never had one more than a year...
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Til the Nexus Two comes out bro
[Edit]: Well, my thinking is how BAD could this affect it. Like leaving it plugged in all the time = 50% battery capacity in 4 months type of thing. I guess that is not the case though eh?

Paul22000 said:
I turn my phone on Airplane mode and unplug at night while I'm sleeping.
BUT! When at work and at home at other times, is it bad to leave it plugged in 100% of the time? (I.E. does it decrease total battery life over a few years to be constantly charging.)
Or is it better to unplug ASAP when it hits 100% and let it drop to 20-30% and recharge-unplug-recharge-unplug etc? (If so, how much of a difference would this make?)
And does it matter USB vs AC source? I know USB is half the amps, so this could have an effect too?
Click to expand...
Click to collapse
To add to what pjcforpres said, I would suggest topping off the battery a couple times a day rather than always letting it run down to 20-30% (deep cycling) the battery. Deep cycling is worse for Li-ion batteries. It causes more heat for longer periods of time when you do charge. I would only discharge completely once every few months to keep the battery calibrated.
My personal habit is to top off frequently. If I'm at home, I'll let it charge to a true 100%, like pjc said, then take it off the charger and leave it off till it hits 75-80% and top it off again.

i can add to this discussion what i've learned about lithium-ion batterys
having it plugged in, while it is being taxed heavily (playing games) and already at 100% is a bad idea, then i discharges and recharges all over the time.
When it isn't full and you plug it in to top it off it shouldn't really do any harm, as long as you disconnect it when it's at 100%.
Emptying it completely also lowers overall capacity, 10% is a good threshold when to charge it.
When leaving it off to store it for a while, store it with around 70-75% in the battery. Storing it fully charged also lets capacity down.

creepinshadow said:
i
Emptying it completely also lowers overall capacity, 10% is a good threshold when to charge it.
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I thought you WANTED to do this? I've heard calibrating it is running it until it turns OFF?

Paul22000 said:
I thought you WANTED to do this? I've heard calibrating it is running it until it turns OFF?
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I respectfully disagree with creepinshadow's suggestions. I've read up on lithium ion batteries considerably in the last few years. 10% is not a good threshold to always charge your battery from... that's deep cycling and was great for nickel metal hydride, but isn't good for lithium ion. That said, there's no way for it not to get that low from time to time if you're away from your charger for extended periods and I'm sure it's not going to destroy your battery as fast as one might think.
As for storage, the I charge (or discharge) mine to 40-45% then pop it into the fridge for storage. Read that in a long article explaining how to treat li-ion batteries.
Like you said though, a full discharge for calibration is running it till it turns off then plugging it in while keeping it off until an hour or so after the light turns green.

I've heard many people say that leaving any device that has a battery plugged in won't harm it as long as you're consistant with the charge cycles. Like only plug in your phone when the battery life is >15% and charge it to 100% before unplugging it.
I get into trouble there, because (for instance) say I'm going to be going into the mall for a while and my battery is at 30% and it's going to take me 30 minutes to get the mall (I live in Northern Virginia, traffic is a *****, haha). I'll hook up my phone while I'm in the car just to have extra battery life while I'm away from a charger.

good question, i wanted to know the exact same thing so good to see someone else ask. got the answers i needed.

Look guys... the reality is that this discussion is really just academic. Take my recommendations, for example. It would be ideal if everyone could do what the study I read suggested, but it's not practicable to always top off the battery and not deep cycle the battery frequently. That being said, I'm sure the difference in battery life wouldn't be apparent for a very long time. I can't imagine phone and battery manufacturers haven't thought about this. So...while I've posted my "recommendations" based on that study... just enjoy your phones.

A new battery cost <$50 i'm sure... If you left your phone plugged in over night, every night for a year it probably won't hold a charge better than someone that unplugs in once it reaches 100%..
I personally would rather not deal with always worrying about over charging it and IF i still had the phone when the battery needs to be replaced, just replace it.
In the past 16 months i've had the Touch Pro, Palm Treo Pro, BB Bold & now the N1.. so i never have a phone long enough to even care lol.

I guess that's true. We can always replace the battery, unlike the Fruit people!
But I was just worried that the damage happened quickly. But I guess it's 9-12 months before seeing any real effects anyway.

scottypimpin636 said:
A new battery cost <$50 i'm sure... If you left your phone plugged in over night, every night for a year it probably won't hold a charge better than someone that unplugs in once it reaches 100%..
I personally would rather not deal with always worrying about over charging it and IF i still had the phone when the battery needs to be replaced, just replace it.
In the past 16 months i've had the Touch Pro, Palm Treo Pro, BB Bold & now the N1.. so i never have a phone long enough to even care lol.
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Actually, it's only $25 from Google.

uansari1 said:
Actually, it's only $25 from Google.
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Link?
I don't see an accessories page at www.google.com/phone
[Edit]: lol nevermind, you have to click "Get your phone" to get accessories haha

Paul22000 said:
Link?
I don't see an accessories page at www.google.com/phone
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Lol... click on the link you posted, click "Get Your Phone" and it's listed right below the Dock!

uansari1 said:
Lol... click on the link you posted, click "Get Your Phone" and it's listed right below the Dock!
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Yeah just saw that. Kind of silly to put it there since people looking for accessories already HAVE a phone. Silly Google

Oh, so by the way, this page brings up a good point:
http://www.google.com/support/android/bin/answer.py?hl=en&answer=175535
Charges at 480mA when installed in Nexus One phone connected to USB, at 980mA when installed in phone connected to charger
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Is there any difference in charging from USB vs AC adapter in terms of how it affects overall battery life?

[OPINION] Do not overcharge battery!

Hi all!
I was browsing through Samsung Galaxy S's Android Development Section when I saw this:
"11. Do NOT overcharge
--Why, when, where: Almost all new batteries have an overcharging protection. This means that the protection that is built into the battery will not let it charge to 100%. This is a feature, not a bug! This will help prolong your battery life while also keeping it safe from overheating/explosion/etc. Do not try to trick it and unplug and plug again until you see 100%, just get used to the fact that you can't have 100% battery anymore and live with it, or you risk destroying your battery."
posted by user "shantzu"
here:http://forum.xda-developers.com/showthread.php?t=939752
I did "calibrate" my battery many times lately by unplugging it when charging and the replugging it. But I sure know I wont do it anymore! It's your choice whether or not you wanna do it!
I just wanted you to know this! Hope I've been helpful!

Cool story bro
Sent from my Dell Streak using XDA Premium App

pgill34 said:
Cool story bro
Sent from my Dell Streak using XDA Premium App
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+1, blablabla (sorry msg needed to be +10 characters, but it's more now and more and more and more )

eXtink said:
+1, blablabla (sorry msg needed to be +10 characters, but it's more now and more and more and more )
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I didnt say this. I just quoted and I said that I wont charge my phone to 100% with the plug-unplug way. So if you take my advise do so, if you don't want to take it please stop posting ****!

vladstercr said:
I didnt say this. I just quoted and I said that I wont charge my phone to 100% with the plug-unplug way. So if you take my advise do so, if you don't want to take it please stop posting ****!
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I dont think he was posting ****. He just wanted to post "+1" (as in "me too"), but needed to respect the minimum character limit for a post.
Badly worded, but it doesnt look like he was making fun of you or anything.
Sent from my Milestone using Tapatalk

I love this thread already
Isn't calibrating the battery all about fixing an Android bug?
Anyway, this reminds me, the Milestone overstates the full charge mV and underestimates the low battery mV.
So, if Battery Monitor Widget reports that I have 4230mV when it's fully charge and plugged in... it's really only 4170mV.
When it's reporting empty at 3200mV, it's really at 3300mV.
http://www.android-hilfe.de/root-ha...ku-infos-ladekurven-leistungsverbraucher.html
Externally measured or indication of the internal voltage measurement
3.30 volts / 3.20 volts
4.12 volts / 4.18 volts
That is, the stone over-estimated the voltage at the battery is full by ~ 60 mV and underestimated the power of up to 100 mV with an empty battery. The intent is well-battery protection (which is good too). It is pretended that 3.0 and 4.2 volts to discharge until it is loaded. In reality, there are more 3.1 volts and 4.15 volts (which by the way of battery manufacturers also better unanimous opinion!).
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Apparently, we are still protected even if we do calibrate the battery.
I'm pretty sure that Payce at android-hilfe actually took that battery out of his phone so I'll go with that.

Thanks for sharing

Good article

Over charging doesn't effect Lithium Ion batterys;
http://en.wikipedia.org/wiki/Lithium-ion_battery

DannyDroid said:
Over charging doesn't effect Lithium Ion batterys;
http://en.wikipedia.org/wiki/Lithium-ion_battery
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Gee thank you! I just wanted to start correcting this non-sense. The "overcharging" affects Lithium-Polymer batteries, not Lithium-Ion, so calibrating battery is HARMLESS!!!!
If you have a Samsung Galaxy S then you have this possibility.
I think we can close this thread.

Actually you can overcharge (any) battery, charging it to the higher voltages for higher capacity when used daily (as cell phones).
However it lowers total lifetime of the battery, but you can get more battery time.
But this isn't the cell phones' thing. IMHO charging circuit + circuits in battery won't allow you to do this. So you can't really overcharge.
This "calibrating" is even suggested by notebook manufacturers - you have to do full discharge -> full charge to set the voltage "limits" for 0% and 100%, so the battery indicator can estimate the remaining battery % precisely.
Just few quotations from http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries to support my opinions:
"In terms of optimal longevity, a charge voltage limit of 3.92V/cell works best but the capacity would be low."
"Should I disconnect my laptop from the power grid when not in use? Under normal circumstances this should not be necessary because once the lithium-ion battery is full, a correctly functioning charger will discontinue the charge and will only engage when the battery voltage drops to a low level."
"Partial discharge on Li-ion is fine; there is no memory and the battery does not need periodic full discharge cycles other than to calibrate the fuel gauge on a smart battery."

The milestone has a Lithium-ion polymer battery which looks like they do suffer from over charging.
"It is important to note that trickle charging is not acceptable for lithium batteries; Li-ion chemistry cannot accept an overcharge without causing damage to the cell, possibly plating out lithium metal and becoming hazardous.[5] Most manufacturers claim a maximum and minimum voltage of 4.23 and 3.0 volts per cell. Taking any cell outside these limits can reduce the cell's capacity and ability to deliver full rated current.
Most dedicated lithium polymer chargers use a charge timer for safety; this cuts the charge after a predefined time (typically 90 minutes)."
http://en.wikipedia.org/wiki/Lithium-ion_polymer_battery
Someone will have to dig deeper into the OEM charger to see if it has some sort of cut off.

the thing with timer seems pretty weird to me. Try charging your battery with very little current - why should you cut it off after 90 minutes? Makes no sense to me, but I'm not an engineer so there may be a fact I overlook.
At the same time with noting overcharge will damage battery cell you should point out that there is no way to overcharge the battery without charging the battery CELLS itselves (not whole battery pack with its circuitry) with your custom charger without monitoring voltage/current.
However - yes, you're right, battery cells can be damaged.

I assume it would be the charging unit itself (i.e. the plug) which as the 90min cut off.
Charging via a USB takes ages (supplied at 5V) and without the "plug" it prob wouldn't have a cut off so the chances of over charging would be higher but would require leaving it in for longer.
I'm not sure, I'm only a first year electriton and haven't touched on batterys.

DannyDroid said:
Charging via a USB takes ages (supplied at 5V)
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The "plug" is just 230V~ -> 5V- transformer so the only difference is current, supplied voltage is the same. Btw I leave my phone in cradle for extended periods of time (24h+) and nothing bad happened. When it's at 100% it stops charging so I don't expect anything to happen.
Same with notebooks - it charges to 100% and stops. E.g. HP does stop charging until battery level drops to 90% so it won't "trickle charge" or do many 99%->100% cycles. Dunno how does the phone charging work, because it says 100% all the time. This can be possibly a bad thing

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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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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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
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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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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.
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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
Click to expand...
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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)

Will charging past 100% harm my battery?

Hi guys, I just bought the TurboPower charger from motorola since my (refurbished) N6 came with only a usb cable. I am very happy with the blazing fast charge speeds but was wondering if continuing to charge the phone after it reaches 100% battery might have any adverse effect on the battery's health or lifespan? A quick google search revealed little consensus so I'm hoping for an expert to chime in on here.
I tend to charge my phone overnight while I sleep, so with the new charger this means several hours of charging at 100% battery, and naturally the phone gets reasonably warm when undergoing such rapid charging, so I'd like to make sure I'm not causing long-term damage! (especially given that I'm not going anywhere near the Huawei N6 if it really has that hideous raised black bar on the back for the camera :/ )
If indeed this is bad for the battery - would using my (slower charging) old Nexus 4 charger overnight be any better? Or is it a bad idea to mix chargers from different phones? Generally this is a question I've always wondered about actually so it'd be good to finally find out.
Here are the charger's output specs from the motorola page in case that's relevant:
Output
Standard: 5V / 1.67A (8W)
TurboPower: 9V / 1.67A (15W)
TurboPower: 12V / 1.2A (15W)

No. use the normal charger for overnight and turbo charger on the go. or outside.
Cloud White Nexus 6!

XDAcube said:
No. use the normal charger for overnight and turbo charger on the go. or outside.
Cloud White Nexus 6
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"No" as in "no it won't harm my battery to charge past 100%"? If so then why bother with the old charger at all? Sorry if I've misunderstood your answer.

christensen6 said:
"No" as in "no it won't harm my battery to charge past 100%"? If so then why bother with the old charger at all? Sorry if I've misunderstood your answer.
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I ment it as yes it degrades battery life overnight to turbo charge.

christensen6 said:
If indeed this is bad for the battery
Output
Standard: 5V / 1.67A (8W)
TurboPower: 9V / 1.67A (15W)
TurboPower: 12V / 1.2A (15W)
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The turbo is not always on. The M-charger switches to standard when the battery is > 78% charged. So at night your 6 battery is not permanently charged with turbo
The N6-bat has a high capacity of 3400mA/h and suitable for turbocharging.
I use the M-charger with a cheap qi-pad for wireless charging at night. When connected to the Qi-pad the M-charger acts like a standard charger.
When needed I connect the M-charger directly to the phone.

christensen6 said:
"No" as in "no it won't harm my battery to charge past 100%"? If so then why bother with the old charger at all? Sorry if I've misunderstood your answer.
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the previous answers are both correct within a certain context.
all batteries have degradation from charging, although constantly subjecting it to the excessive heat of turbo charging will speed this up.
maybe it will take a year or 18mos before you realize the charge isnt lasting as long as it used to, maybe less. its a guess really.
the point is, dont subject it to turbo charging unless you really need that option. it is the best way to maximize the life span of your battery.

bweN diorD said:
the previous answers are both correct within a certain context.
all batteries have degradation from charging, although constantly subjecting it to the excessive heat of turbo charging will speed this up.
maybe it will take a year or 18mos before you realize the charge isnt lasting as long as it used to, maybe less. its a guess really.
the point is, dont subject it to turbo charging unless you really need that option. it is the best way to maximize the life span of your battery.
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Thanks for the clear response do you happen to know if there is any adverse effect from using a slower charger designed for a smaller battery (like the Nexus 4 charger I am currently using)? I wouldn't have thought so but you never know...

bweN diorD said:
the previous answers are both correct within a certain context.
all batteries have degradation from charging, although constantly subjecting it to the excessive heat of turbo charging will speed this up.
maybe it will take a year or 18mos before you realize the charge isnt lasting as long as it used to, maybe less. its a guess really.
the point is, dont subject it to turbo charging unless you really need that option. it is the best way to maximize the life span of your battery.
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Click to collapse
While I agree that all electronic components lifespan is reduced by excessive heat, I don't think that answers the question fully.
Regardless of the charging method employed (standard or turbo) you will not reduce battery lifespan by remaining connected to the charger at 100% capacity.
The method you use to charge a depleted battery to the specified value governed by the phone which disables turbo charge, the increased heat "may" reduce its lifespan.

christensen6 said:
Thanks for the clear response do you happen to know if there is any adverse effect from using a slower charger designed for a smaller battery (like the Nexus 4 charger I am currently using)? I wouldn't have thought so but you never know...
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no it wont. it may just take longer if it cant meet the phones standard charging needs. it would actually be worse for the charger than the battery if it couldnt.
i generally charge mine from an outlet strip with usb charging built in i got off amazon.
a common misconception about chargers is bigger is better. thats generally not the case.
for instance, a charger can state an output of 3a. all that means is the charger "can" output 3a, not that it pushes 3a to the device, because thats simply not how it works.
the device will draw what it needs of that 3a capability. it may be anywhere from 0 to 3a. there is charging circuitry in all devices that controls how much charging power the battery is allowed to have. if you give it less than what it wants, the battery will just charge slower.
hope that helps.
---------- Post added at 06:42 PM ---------- Previous post was at 06:35 PM ----------
blyndfyre said:
While I agree that all electronic components lifespan is reduced by excessive heat, I don't think that answers the question fully.
Regardless of the charging method employed (standard or turbo) you will not reduce battery lifespan by remaining connected to the charger at 100% capacity.
The method you use to charge a depleted battery to the specified value governed by the phone which disables turbo charge, the increased heat "may" reduce its lifespan.
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actually, reaming connected to any charger while at 100% is not recommended.
the last 5% or so is the worst state for the battery, as is basically tries to cram the last bits of juice in there. when you stay connected, its repeatedly topping off, which is repeating the added stress of getting the last bits of juice in.
im sure i didnt do the best job of explaining that. if you have some free time google "battery university". there is some very good info on there about what im saying, and about li batteries in general.

bweN diorD said:
actually, reaming connected to any charger while at 100% is not recommended.
the last 5% or so is the worst state for the battery, as is basically tries to cram the last bits of juice in there. when you stay connected, its repeatedly topping off, which is repeating the added stress of getting the last bits of juice in.
im sure i didnt do the best job of explaining that. if you have some free time google "battery university". there is some very good info on there about what im saying, and about li batteries in general.
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Trickle charging is not desirable, topping off isn't bad if the charging method doesn't top off to the threshold voltage (Eg. 4.3V), so I guess without more information on a specific device employing a lithium-Ion battery It's hard to say for sure if remaining connected to the charger causes adverse affects.
If you want to get down to the few days or weeks you'll save on the lifespan of your battery you might as well turn it off during each charging cycle to avoid parasitc load, as this can degrade lifespan more than topping off.
I guess it comes down to personal preference overall. Do you want/need the convenience of leaving your device always on (minus occasional reboot) and you prefer starting off with a full capacity battery each day? Or do you prefer your battery will enjoy it's entire intended lifespan? Me personally I choose the former since I don't like to miss calls or notifications while charging and I don't keep a smartphone much longer than a year anyways.

In this thread I read several good suggestions about charging.
But don't forget discharging. Charging, turbocharging and also discharging will shorten the battery life.

Actually, when laptops first came out, if you overcharged them, the battery would explode! :laugh: Luckily engineers designed a way that Lithium Ion batteries dont do this anymore!

charging past 100% will not damage your battery. ive been doing it for the past 10 years. at one point, it would damage the battery, very sightly, over long periods of time. but in todays times, it won't damage it. first off, 100% isnt when it stops charging. it stops charging once it reaches a certain voltage, which is ysually after you reach 100%. yes, even though its plugged in, it will stop charging. and then will charge again, after some voltage leaves it. it will not take in an extra charge. once its done charging, its done, and will not charge more.

NLBeev said:
The turbo is not always on. The M-charger switches to standard when the battery is > 78% charged. So at night your 6 battery is not permanently charged with turbo
The N6-bat has a high capacity of 3400mA/h and suitable for turbocharging.
I use the M-charger with a cheap qi-pad for wireless charging at night. When connected to the Qi-pad the M-charger acts like a standard charger.
When needed I connect the M-charger directly to the phone.
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+1 I do the same with my M-charge, my qi charge turns off when the phone reaches 100. It doesn't drain that much when it is done charging usually it's still at 100. Before I got root and greenify, it would drain to a max of 4% by the time I woke up.