Hello!
I just received my new S7 edge and boy I love it. I have charged it only twice and now as it is 11 pm and my phone is left with just 17% battery, I need to charge it.
So I usually charged my old HTC One M7 overnight, not thinking about how it might ruin or damage the battery.
But how about the S7 edge? When does the adapter in the outlet know, when to stop charging?
The S7 supports fast charging, which I am using.
But with 6 hours of sleep, won't it over-charge overnight?
Since it's still sending small electrical pulses into the battery even though it's full.
Please help me!
Charging overnight shouldn't do damage. However, try to decrease use of fast charging. It creates more heat than normal charging, and heat exposure damages the battery.
You also want to charge your battery before it hits 40%. This is due to how lithium ion batteries work. Also, most recommendations say charge only to 80%.
Anyway the gist is, basically, batteries work by ion movement, and like a machine, these ions wear out over time due to use. And similar to machines, heavy use wears them out more. You're more likely to break an engine by running it for 1 day at max rev, than running it over a month at half capacity. The smaller the depth of discharge, the lower the wear. Lab tests have concluded that when you constantly discharge from 100 to 0, it allows you betwrrn 300-500 charge cycles before it starts to break down and not hold charges. More specifically, when you reach that magic number your battery can only hold 75% of it's original charge. That's typically 1-2 years of use if you charge once a day. And heavy abusers charge more than once a day, so that decreases the time span to however many weeks it takes them to reach 500 charge cycles. Now, the increase in charge cycles is exponential, not arithmetical. So a depth of discharge to 50 before recharging will not give you 600-1000 charges. Rather it will give you 1200-1500 charge cycles. Mathematically, draining a 3600mah to zero for 300 charges gives you 1080000mah to burn through however short your battery life will be. On the other hand, using only 50% of the battery before recharging gives you 2160000mah to burn through before it expires after at least 1200 charge cycles. In other words, it stored twice more power for you to use. If you say, charge once every 24hrs, going always from 100 to 0 gives you at least 300 days. Recharging twice a day at 50% gives your battery at least 600 days of use before battery capacity deteriorates noticeably. Discharging to 75% before recharging actually gives you 2000-2500 charge cycles, making it even longer. Basically the point is, always plug the phone in when given the chance. Don't wait for 50%, or whatever. 40% is an arbitrary number actually, not sure why it's chosen. Also, this is why one of the choices to auto activate power saving in the S7 is at 50%, so that it keeps the battery up as close to 50% as possible when you get the chance to plug in.
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As for charging to 80%, this is because partial charge is better than full charge for lithium ion batteries. The ions are placed on stress to hold charges. Maximum stress is at 100% charge. And like everything else, stuff tends to break more. So not running it to 100% all the time will reduce overall stress experienced and increase the time before deterioration occurs. Personally I charge to 90%, and discharge to 40% or above. That's a 50% depth of charge, so that's good for up to 1500 charge cycles, plus whatever number of cycles the decrease in max stress gives me.
However, note that environmental temperatures also play a role in battery longevity.
Sent from my Galaxy S7 Edge Duos via Tapatalk
No harm in leaving it plugged in all night and charging to 100%. The phone controls the battery from being overcharged, not the charger. I've switched off fast charging on mine, as that can be hard on a battery over time and I have no need for it charge any faster than overnight.
Thanks for the info. I didnt know that. And does the battery also work better, as in gives you more SOT if you charge it like you said?
Saridas said:
Thanks for the info. I didnt know that. And does the battery also work better, as in gives you more SOT if you charge it like you said?
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No it won't. It just makes the battery last longer before it needs replacement. It's not going to affect how fast you drain your battery because that's dependent on your usage.
Sent from my Galaxy S7 Edge Duos via Tapatalk
Related
I want to make the most out of my galaxy tablet 10.1 battery life, i was wondering what would be the best care for it. Each 1% for me lasts about 4 and half minutes on 40% brightness, wifi on, gps off, and auto rotation off. I heard the g.tab gets close to 9 hours of battery life, but I estimate mine about 7.5ish? Also, would it be best to completely drain the battery and then recharge to 100? I heard its not good for lithium battery to drain completely and recharge because it will put more wear to it. Any suggestions?
Thanks
There are many theories but the following is what i follow.
It's not a good idea to discharge below 20%.
Lithium batteries don't like to be stored fully charged for long persiods of time, lithium battery is most happy at nominal voltage, so it's not a good idea to leave your device connected to charger if not needed.
I seem to get 1hour of display on use for 10% of battery, this is with minimum screen brightness.
Having read up about this I have decided to charge mine every night no matter what the charge. A typical day use can leave me with 40 percent to 80 percent left. I discovered that a charge cycle is not the same as a charge. A cycle means 100 percent of the charge stored being taken off and put on the battery. So if you use 20% a day and charge each night that is 1 cycle in 5 days not 5 cycles. There is no reason to avoid plugging it in as you dont want the charge to drop too low or else the battery is lessened very slightly.
I am sure there are lots of opinions on this but am happy with the above and battery performance is great. I was worried about unnecessary charging but that is not the thing to worry about - do anything you can to keep it over 20% (although a near total discharge every month would be good to keep the calibration in check).
Don't stress about it too much. Just enjoy the device. With sensible use your tab will he long replaced and discarded before the battery fails.
Sent from my GT-I9100 using XDA App
^^^ my thoughts exactly. By the time the battery fails to hold a charge, the device will be far out dated...
Should I charge it for like 10 hours, then play with it? or you think its ok to just start playing out of the box.
I've heard stories..where you should, and where it's not necessary.
Thanks
lin013190 said:
Should I charge it for like 10 hours, then play with it? or you think its ok to just start playing out of the box.
I've heard stories..where you should, and where it's not necessary.
Thanks
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Mine came nearly full. I just plugged it into charger out of the box and played with it while it was charging
Sent from my Nexus 7 using Tapatalk 2
With any new phone I always play with it till it dies and then plug it in and charge for 8 hours and then power it on and good to go
Sent from my EVO using xda app-developers app
Hmm, I see.:cyclops:
With every electronic gadget using Lithium-ion batteries nowadays, it doesn't really matter how/when you charge it.
Some would argue to make sure to allow a full discharge from a full charge from a battery calibration point of view, so the battery meter is more accurate. It wouldn't affect the health of the battery itself either way.
Things like memory effect doesn't apply to lithium-ion. How often you charge it and how much you charge it (full or partial charge etc.) doesn't affect it much either. The only 2 things that can potential kill a lithium-ion is high temperature and letting it discharge far too low to the point that it cannot be charged up again. Note that all electronic devices will power off way before it even reaches this threshold.
What makaijin says is correct
I had mine a bit of a charge yesterday but it was no where near full.
Used it till it was flat this morning. It's currently on charge and I'm going to leave it till it's full only because I need to stop messing with it and do other things
Sent from my HTC One X using Tapatalk 2
I charged mine for 4 hours before use.
Although it is probably not necessary nowadays, I like to fully discharge the device, then charge it overnight (so it gets back up to 100% and tops off), then cycle it that way 2/3 times, so properly "condition" the battery, as I don't 100% trust the conditioning done before shipping.
Just as a side note, most of the battery conditioning lore is coming from way back in the bad ol' nicad days (probably 1990's), when you HAD to 100% discharge/recharge the battery, and make sure it didn't overcharge or undercharge, else it would not be "conditioned" properly, and it had a permanently reduced max charge. Nowadays, expecially with Lion, it is not necessary, and may even be harmful to fully discharge/recharge cycle EVERY time you use it. The first few times it's probably best to do it to fully condition the battery, but beyond that, it really does nothing.
hanthesolo said:
Although it is probably not necessary nowadays, I like to fully discharge the device, then charge it overnight (so it gets back up to 100% and tops off), then cycle it that way 2/3 times, so properly "condition" the battery, as I don't 100% trust the conditioning done before shipping.
Just as a side note, most of the battery conditioning lore is coming from way back in the bad ol' nicad days (probably 1990's), when you HAD to 100% discharge/recharge the battery, and make sure it didn't overcharge or undercharge, else it would not be "conditioned" properly, and it had a permanently reduced max charge. Nowadays, expecially with Lion, it is not necessary, and may even be harmful to fully discharge/recharge cycle EVERY time you use it. The first few times it's probably best to do it to fully condition the battery, but beyond that, it really does nothing.
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"Conditioning" does not occur with li-on batteries, period. Charging/discharging does absolutely nothing for the life of your battery.
Ifixit shows that the battery inside the Nexus 7 is Lithium Polymer. Does that make a difference in terms of conditioning compared to Li-Ion batteries?
MaxCarnage said:
"Conditioning" does not occur with li-on batteries, period. Charging/discharging does absolutely nothing for the life of your battery.
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Oh, thanks. I thought that was my being paranoid .
Lithium Polymer batteries are actually worse than Lithium-Ion. Don't take my word for it, but at least with older RC Lipo batteries, fully discharging damages them even more the lithium-ion. I am sure the tablet cuts off way before the danger point, but still something to keep in mind.
Here's the deal- and this has been verified on multiple devices with larger batteries- Your tablet will need to self-calibrate the battery meter/charging to the battery. You can expect things like sketchy battery life and running down very low or completely overnight for the first couple days. Once everything "syncs up", you can take advantage of the full potential of the battery. This happened with my Razr Maxx and it happened on my Nexus 7's first overnight. And, talking to people who have had their Nexus 7's a few days, it's common and expected.
As said, it is NOT the battery conditioning, it is the device calibrating. The battery is pretty big and there's a period of time while the device learns.
I decided to drain the battery all the way and then charge it all the way up. It's charging right now actually, any idea how long it should take to get up to 100%?
Sent from my SAMSUNG-SGH-I777 using xda app-developers app
phoneman09 said:
I decided to drain the battery all the way and then charge it all the way up. It's charging right now actually, any idea how long it should take to get up to 100%?
Sent from my SAMSUNG-SGH-I777 using xda app-developers app
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Not sure but you can always tap the power button to pull up the battery charge animation. It should let you know when it is fully charged.
Sent from my Nexus 7 using Tapatalk 2
Over discharging a Lithium Ion battery can ruin it in a single cycle. Of course any consumer device should shut off before that happens but deep discharges to the shut off point still permanently reduce battery capacity significantly more than shallower discharge cycles.
In simple terms, you'll get significantly more hours of battery use during its lifetime if you only discharge to 50% than 10% or less.
Lithium Ion batteries never need to be "fully discharged" to the device shut off point and as stated above, it isn't "good" for them.
That said, a discharge from fully charged to at or near shutoff let's the device software measure the battery capacity more accurately so you'll get a more accurate battery reading.
Lithium Ion batteries should not be charged at elevated temperatures. If you just watched a two hour movie, let it cool down before charging. A tablet is a nasty place for a battery with the CPU heating it up. Most manufacturers advise not charging at > 85 deg F and 70 deg F is better. A really good charger will measure battery temperature and reduce the max charging rate at elevated temperatures.
Lithium Ion batteries should be stored at 50-70% capacity and not fully charged. That's ~3.7 V per cell. Those of us who use the device a lot on external power would see a lot longer battery life if there was a mode which allowed keeping the battery below 100% while on external power. It seems every manufacturer thinks consumers are too dumb to understand the value of providing it and switching to full charge mode before we run off on battery power.
TP_NC_USER said:
Over discharging a Lithium Ion battery can ruin it in a single cycle. Of course any consumer device should shut off before that happens but deep discharges to the shut off point still permanently reduce battery capacity significantly more than shallower discharge cycles.
In simple terms, you'll get significantly more hours of battery use during its lifetime if you only discharge to 50% than 10% or less.
Lithium Ion batteries never need to be "fully discharged" to the device shut off point and as stated above, it isn't "good" for them.
That said, a discharge from fully charged to at or near shutoff let's the device software measure the battery capacity more accurately so you'll get a more accurate battery reading.
Lithium Ion batteries should not be charged at elevated temperatures. If you just watched a two hour movie, let it cool down before charging. A tablet is a nasty place for a battery with the CPU heating it up. Most manufacturers advise not charging at > 85 deg F and 70 deg F is better. A really good charger will measure battery temperature and reduce the max charging rate at elevated temperatures.
Lithium Ion batteries should be stored at 50-70% capacity and not fully charged. That's ~3.7 V per cell. Those of us who use the device a lot on external power would see a lot longer battery life if there was a mode which allowed keeping the battery below 100% while on external power. It seems every manufacturer thinks consumers are too dumb to understand the value of providing it and switching to full charge mode before we run off on battery power.
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I would rather always have my battery near max charge when I take it off the charger than have a battery last 7 years instead of 3 or 4 in a device I will realistically only use extensively for 2. Even more so with a phone where they battery can replaced for $20. I'll take a full charge every time over the battery lasting for years longer than I need it to.
I have a first gen iPod Touch I bought when they were released (2007 I think?). I have left it on a charger for MONTHS. Still holds a decent charge.
Is there benefit to using a battery calibration app like this if you're rooted?
https://play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=en
You don't have to but I like to. Mine was like 40% charged when I unboxed
Sent from my Nexus 7 using xda app-developers app
sRDennyCrane said:
Here's the deal- and this has been verified on multiple devices with larger batteries- Your tablet will need to self-calibrate the battery meter/charging to the battery. You can expect things like sketchy battery life and running down very low or completely overnight for the first couple days. Once everything "syncs up", you can take advantage of the full potential of the battery. This happened with my Razr Maxx and it happened on my Nexus 7's first overnight. And, talking to people who have had their Nexus 7's a few days, it's common and expected.
As said, it is NOT the battery conditioning, it is the device calibrating. The battery is pretty big and there's a period of time while the device learns.
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Calibration occurs every time the battery is charged to 100%. It isn't a "first few days" type of thing, it is every single time the battery meter reaches 100%.
I had no choice but to completely charge my N7 (purchased from Office Depot 7/14). When I went to turn it on the first time, I was greeted with small text in the upper left side of the screen that said "show low battery logo" on a completely black screen. No logo...no nothing. Completely blank. Plugged it in, the battery charging logo popped up, fully charged it and it's been working great since.
However, I found it a bit odd as I thought most of these types of devices ship with about a 40% battery charge.
Thoughts?
Many people just think about how to protect the Samsung Galaxy S i9000 battery life of phone, today i introduce some experience to protect our phone battery, so that we can save the battery life from these ways::highfive:
1. Fully Charged
To maintenance of a lithium battery, must occasionally let one of the electrons to maintain liquidity, to ensure that at least once a month to go through a full charge (battery is charged up about 20% full).
2. Do not use non-original straight and "universal charge"
Because the third-party charger specifications and quality can not be guaranteed with the original charger, battery might be damage repair may also cause disputes.
Why rushed 100%, they still continue to charge?
Power to 100% does not mean that your battery is already full. To Charge Gauge maximization, and roughly 40 - 80 min rushed fully full of From 100%. If the battery is aging, which will require more time in waking this process.
3.Do not drain the battery.
Try not to use automatic shutdown on the line, often run out of battery power will affect the battery capacity and charge cycles.
4. Do not overcharge
Stop charging long after the battery has been fully charged phone prompts, 40 to 80 minutes.
5.Note heat
Please keep in charge when the phone is easy to heat the place. Because the battery charging will occur.
Today, i just write thess ways to help you guys protect the cell phone battery, just do hope it is a help to you!
junior2012 said:
4. Do not overcharge
Stop charging long after the battery has been fully charged phone prompts, 40 to 80 minutes.
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If you charge the phone while it's turned off it shouldn't overcharge anyway.
It charges to 99% then stops automatically. So you can leave it charging overnight without damaging the battery.
I used this: http://www.androidzoom.com/android_...vity/battery-saver-dx-power-widget_blaeb.html
I'm sure there are some others doing the same...
Recharge Early prolongs Battery Life
It's absolutely impossible to Overcharge a Lithium Ion Cell with the Stock Charger, despite of On/OFF State of the Phone so don't worry. A Lithium Ion Cell would degrade a lot (permanently) if you'd overcharge it but this is really not a Problem those days, because the Recharge Process will surveilled by a seperate Microprocessor to avoid any overcharging. In my Experience it is much better only to recharge the Battery ONLY when the Phone Power is Off- that's what every Manufacturer writes in the User Manual. Me personally using a Universal Charger with a second battery, so i can always use the Phone and the USB Connection will not be stressed. Also i am recharging early- that means a Battery Level from 30-70 %. If you recharge when the Batttery Level is about 3.7 Volt recharging goes much faster and the Battery will not be stressed that much like when you run it till it's completely empty- that should implicitly be avoided!). It's NOT necessary to decharge completely- o.k. If you don't do that from time to time it affects the shown Battery Level a little bit but if you recharge early and often this is not a Issue at all.
I run battery cycle from 25% to 80%. I keep it between these levels. It is good for Lithium Ion Cell batteries as neither cell is empty. If it gets empty, impurities settle on the anode/cathode.
There was an app which allowed limiting max charge. Was it NSTools or something on those lines. What was it called? *scratching my head*
Silly question, but thought it would be good to ask nevertheless,
Does Adaptive Fast Charging Reduce the Lifespan of your Device?
How is the impact on the overall number of charge cycles for the removable battery?
it reduces the lifespan of your battery not your device. charging at anything exceeding 1C damages the battery. thats 1.5 hours for a full charge.
then again the battery is 30 bucks.
Let the battery drop to 2%, then let it recharge!
Over time, we all know that most batteries lose a lot of their useful juice.
>> I'd suggest making the battery life-life last longer, by letting the battery drop to 2%, then, recharging it fully! This is to avoid battery swelling in the phone, which may cause an internal damage to your phone's components :good:
Happy browsing!
VERSVCE said:
Over time, we all know that most batteries lose a lot of their useful juice.
>> I'd suggest making the battery life-life last longer, by letting the battery drop to 2%, then, recharging it fully! This is to avoid battery swelling in the phone, which may cause an internal damage to your phone's components :good:
Happy browsing!
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Isn't that too low? Won't doing that actually reduce battery life in the long run? I've read that it's good to let it drop to 20% before re-charging it.
Analogy time!
jpbl1976 said:
Isn't that too low? Won't doing that actually reduce battery life in the long run? I've read that it's good to let it drop to 20% before re-charging it.
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Let's imagine you were a phone that was used the whole day, and your batteries are down to 2% Let's say that 2% is your subconscious, to run all that extra information that's through your brain, telling you "Hey, you got extra (at 20%) a whole lot of space for new power juice!"
I know it's sounds like a very childish analogy, but I guess this is the best way I could've explained it :fingers-crossed:
Best information source on batteries:
http://batteryuniversity.com/
The batteries degrade as a function of discharge cycles (where 10 discharges to 90% are roughly the same as one discharege to 0%), time, temperature and charge.
Batteries age slowest when they are at 40%. That's why your out of the box battery is usually 40%, to prolong shelf life.
Batteries age faster the higher the temperature is - adaptive charging increases the temperature while charging more than normal charging, but not by much nor for a long time.
So no need to worry about anything. Charging from 2% is not better than charging from 20%.
Note, their article http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries does not take into account the adaptive charging technology, so the last graph is not really applicable in this case.
I don't like quoting batteryuniversity.. but this is pretty good analysis.. Depth of Dicharge is directly related to the overall longevity of the lithium batteries.. more you discharge.. the less cycles you're going to get..
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
but.. considering that these batteries are $30 bucks.. use them how you like.. just replace it when you start to "FEEL" that battery isn't holding the charge anymore.
The only thing that Samsung said about the Adaptive Fast Charging adapter is that you can charge 50% of the whole charge in only 30 minutes. They didn't say what tecnology they used or any warning of it. If you buy a phone, and it cames with the original charger which is aproved by the FCC and who knows what other organizations tested it, it means that you will not have any problem with the battery by using the original charger that comes with your device. Anyway, a normal smartphone battery only lasts it's original capacity for almost 2 years, after that, consider to replace it.
http://chargedevs.com/newswire/new-...age-lithium-ion-batteries-as-much-as-thought/
zurkx said:
it reduces the lifespan of your battery not your device. charging at anything exceeding 1C damages the battery. thats 1.5 hours for a full charge.
then again the battery is 30 bucks.
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so how much "C" this adaptive charger Note 4 ?
As far as I know modern phones know how much juice is in the battery, and shut off well before the battery is empty to ensure no damage is done if you drain it completely.
With all my new phones I always run them till the turn off then fully charge them back while off up to 4 or 5 times, and in the past this has always improved the life of the battery.
I do not believe this improved the battery life of modern phones though, it's just a habit.
On the flip side, it's never damaged a phone or battery of mine.
As for charging currents and speed, i've always used used charger 1.5amp and above and never had a problem.
Hey guys, I recieve my s7 edge today, whats the best way to condition the new phones battery? Some use what it has until its low to recharge until 100 others leave phone off and charge to 100 at start, whats the best result for a good healthy battery?,
Thanks
Lithium ion batteries have come a long way. There is no "memory effect" and conditioning is probably not really all that necessary. If I were you I'd just give it a charge to 100 and use as normal. Might have high drain for the first few days/charge cycles.
Remember that with Li-Ion batteries a "charge cycle" is one complete cycle from 0% to 100%. So by charging when it's at 50% you're only using up one half of a "rated charge cycle" - Battery conditioning shouldn't really be required with modern lithium ion batteries.
Battery conditioning isn't necessary but charging fully and depleting fully will help the phones software learn the battery capacity and give the most accurate percentage remaining reading. I'd say do this a couple times after you first get the phone
gaff15 said:
Battery conditioning isn't necessary but charging fully and depleting fully will help the phones software learn the battery capacity and give the most accurate percentage remaining reading. I'd say do this a couple times after you first get the phone
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This makes sense I guess. But wouldn't the battery percentage remaining be based on the voltage in the battery at a given moment? I wouldn't think the phone would need to "learn" that.
Afaik. It's actually bad to discharge li-ion and li-po batteries down low. I think it's better for battery health to recharge around 50% for instance than waiting until 0%.
Xileforce said:
Afaik. It's actually bad to discharge li-ion and li-po batteries down low. I think it's better for battery health to recharge around 50% for instance than waiting until 0%.
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The 50% mark is an old(and still good) rule of thumb primarily for lead acid batteries.
Leaving these batteries in a discharged state can be bad for them, but in normal usage even a discharge to 0% is fine if followed shortly by a charge cycle. These devices have a low voltage cutoff which is what shuts the phone down and protects the battery from over discharge and damage. Bottom line is use and charge it however you like, the only thing that may change is the time it takes the software to learn your discharge profile and show accurate stats.
Ashevar said:
The 50% mark is an old(and still good) rule of thumb primarily for lead acid batteries.
Leaving these batteries in a discharged state can be bad for them, but in normal usage even a discharge to 0% is fine if followed shortly by a charge cycle. These devices have a low voltage cutoff which is what shuts the phone down and protects the battery from over discharge and damage. Bottom line is use and charge it however you like, the only thing that may change is the time it takes the software to learn your discharge profile and show accurate stats.
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This makes sense. The article I read awhile back was likely referring to non smart charging systems, such as a battery pack. It makes sense that an integrated solution such as a phone would regulate that to maintain battery health.
There are three things that are very bad for Li batteries. 1: overcharging. 2: completely draining. 3: overheating. Li batteries are happiest, and will last the longest, if never cycled above 75% or below 25%. Cars like the Tesla actually show 100% charge when the battery pack is only about 75% charged, and show the battery as depleted well above 0% charge. Then again, the battery pack for a Tesla costs a lot more than a phone.
#1 shouldn't be a problem in any modern device. The circuitry in the battery will tell the phone when to shut down charging to prevent overcharge. #3 can be a problem. If you're charging the battery simultaneously with high battery draining phone usage (e.g., GPS and Nav) phones can get very hot. In fact, I've had my phone stop charging and display a warning when I was navigating and charging the phone wirelessly at the same time. If you're using GPS on a long trip, you almost have to charge it while in use, but might want to avoid wireless or fast chargers. Wireless chargers and fast chargers generate more heat.
#2 is up to you. Repeatedly discharging the battery to single digits will reduce it's lifespan. I try to recharge before 25% but if I get into a situation where I can't I don't obsess over it. I don't worry too much about charging to 100%. I suspect that, like Tesla, 100% is probably not really 100%. The battery manufacturers are likely to leave a little safety margin in there to ensure batteries can't overheat and catch fire.
meyerweb said:
There are three things that are very bad for Li batteries. 1: overcharging. 2: completely draining. 3: overheating. Li batteries are happiest, and will last the longest, if never cycled above 75% or below 25%. Cars like the Tesla actually show 100% charge when the battery pack is only about 75% charged, and show the battery as depleted well above 0% charge. Then again, the battery pack for a Tesla costs a lot more than a phone.
#1 shouldn't be a problem in any modern device. The circuitry in the battery will tell the phone when to shut down charging to prevent overcharge. #3 can be a problem. If you're charging the battery simultaneously with high battery draining phone usage (e.g., GPS and Nav) phones can get very hot. In fact, I've had my phone stop charging and display a warning when I was navigating and charging the phone wirelessly at the same time. If you're using GPS on a long trip, you almost have to charge it while in use, but might want to avoid wireless or fast chargers. Wireless chargers and fast chargers generate more heat.
#2 is up to you. Repeatedly discharging the battery to single digits will reduce it's lifespan. I try to recharge before 25% but if I get into a situation where I can't I don't obsess over it. I don't worry too much about charging to 100%. I suspect that, like Tesla, 100% is probably not really 100%. The battery manufacturers are likely to leave a little safety margin in there to ensure batteries can't overheat and catch fire.
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#1 -> Could be a problem. Manufacturers can set the 100% mark at higher voltage to make it look like it has more capacity while sacrificing longevity, just enough to get through the 1 year warranty period. (Lot of powerbanks do this!) Users have no control of this ceiling. Charging to 80% and letting it cycle below that probably keeps the battery much healthier than keeping it plugged overnight at 100%.
There's an app called AccuBattery on playstore that people might want to check out. It's basically an alarm that turns on when the battery is at desired % level. It also cites real research papers so I would trust what they are doing.
I used to have a long post with a detailed technical explanation but lost it.
Anyway the gist is, basically, batteries work by ion movement, and like a machine, these ions wear out over time due to use. And similar to machines, heavy use wears them out more. You're more likely to break an engine by running it for 1 day at max rev, than running it over a month at half capacity. The smaller the depth of discharge, the lower the wear. Lab tests have concluded that when you constantly discharge from 100 to 0, it allows you betwrrn 300-500 charge cycles before it starts to break down and not hold charges. More specifically, when you reach that magic number your battery can only hold 75% of it's original charge. That's typically 1-2 years of use if you charge once a day. And heavy abusers charge more than once a day, so that decreases the time span to however many weeks it takes them to reach 500 charge cycles. Now, the increase in charge cycles is exponential, not arithmetical. So a depth of discharge to 50 before recharging will not give you 600-1000 charges. Rather it will give you 1200-1500 charge cycles. Mathematically, draining a 3600mah to zero for 300 charges gives you 1080000mah to burn through however short your battery life will be. On the other hand, using only 50% of the battery before recharging gives you 2160000mah to burn through before it expires after at least 1200 charge cycles. In other words, it stored twice more power for you to use. If you say, charge once every 24hrs, going always from 100 to 0 gives you at least 300 days. Recharging twice a day at 50% gives your battery at least 600 days of use before battery capacity deteriorates noticeably. Discharging to 75% before recharging actually gives you 2000-2500 charge cycles, making it even longer. Basically the point is, always plug the phone in when given the chance. Don't wait for 50%, or whatever. 40% is an arbitrary number actually, not sure why it's chosen. Also, this is why one of the choices to auto activate power saving in the S7 is at 50%, so that it keeps the battery up as close to 50% as possible when you get the chance to plug in.
As for charging to 80%, this is because partial charge is better than full charge for lithium ion batteries. The ions are placed on stress to hold charges. Maximum stress is at 100% charge. And like everything else, stuff tends to break more. So not running it to 100% all the time will reduce overall stress experienced and increase the time before deterioration occurs. Personally I charge to 90%, and discharge to 40% or above. That's a 50% depth of charge, so that's good for up to 1500 charge cycles, plus whatever number of cycles the decrease in max stress gives me.
However, note that environmental temperatures also play a role in battery longevity.
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just use the dang phone...
cri[LIST=1 said:
[/LIST]s_epic;65635276]Hey guys, I recieve my s7 edge today, whats the best way to condition the new phones battery? Some use what it has until its low to recharge until 100 others leave phone off and charge to 100 at start, whats the best result for a good healthy battery?,
Thanks
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That's actually a perfect way to ruin your battery on purpose!
Just do these things and Don't worry a lot. And remember, when it does die it's not your fault, it's kind of a problem with Lion batteries!
1. Try to keep the battery between 40-80% or 20-40%. But don't worry if tou can't. Saying this in case you're staying at home all day.
2.Keep the heat away from it!!! This one is important
3. Try to discharge it at a lower rate but don't let that get in the way of you enjoying your device.
4. Try not to discharge below 8% at all. But try to not discharge it below 15-20% unless you have important things to do.
5. don't keep it topped of for a long time (like constant going 90-100%, this is damaging) and don't keep it at 100% for long! (For example turning it off and stop using it for a week, or keeping it plugged for a few days)
If you're storing it keep it at 40% (3.8-3.75V) and try to drain it once in a while. (Unlikely to happen with a phone specially one without a removable battery )
I really do hope someone invents a new type of battery. Lipos are anoyying
Simple you don't need too lol
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