before everybody tells me the search function, I already have but I find mixed and contradiction answers on this issue. Some people say to do a full discharge followed by a full recharge as soon as you get the phone. Then on the other hand some people say that you shouldn't do this since the x1 uses a li-ion and its bad for it. Some people say you should charge it only when it's near empty, but on the other hand some people say to keep charging it as often as possible. Some say to take it off the charger once its fully charged, but then some say its ok to leave a fully charged battery on the charger.
As you can see, from searching the forum I've gotten pretty confused. so what is the PROPER way to charge our x1 battery? Is it also true that battery life gets better the more you put it on the charger? Does the x1i get better battery life than the x1a? I'm asking this because I'm gettin very poor battery life on my x1 compared to the 1-3 days of heavy usage that I see other people gettin on this forum. I'm going to exchange it today for a new one, so I don't want to make the same mistakes with charging my battery as I did with the first one.
Charging:
Do charge the battery often.
The battery lasts longer with partial rather than full discharges.
Discharging:
Avoid full cycle because of wear.
80% depth-of-discharge recommended.
Re- charge more often. Avoid full discharge.
Low voltage may cut off safety circuit.
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From:
http://www.batteryuniversity.com/partone-21.htm
dogans said:
From:
http://www.batteryuniversity.com/partone-21.htm
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that is very true......i get better life (3days) when i charge from 50%. otherwise i barely get more than 24hr.
thanks, that helps a lot! but what do I do once the battery has finished fully charging on the charger? should I take it off or is it fine to still leave it on the charger?
i have noticed this today,
i have installed a battery indicator bar (i cant remember which one) i charged my my X1 during night, when i woke up, i found that the phone is not charging and the battery is full. so i think that the phone automatically stopps charging when the battery reaches 100%
anyone can confirm that?
Not sure about the way to charge it, but i can comment on your current battery life. when i got mine, i had 1 days battery life, but after flashing it, i'm now getting between 3-4 days......
i used
http://forum.xda-developers.com/showthread.php?t=458768
Glad to see that there are people that read the "real" stuff (I'm talking about dogans), the batteryuniversity site is mantained by the very battery fabricants, so their opinions are the best informed ones, even if they might bias a little to keep the bussiness "healthy".
However, any Lithium battery should not be fully discharged -at least not often-, because the full discharge shortens their life.
Usually, good chargers do control the charging parameters (battery's voltage, current and temperature curves) while it charges and "know" when to stop, even if they really don't stop ever (normally), the go in "tickle" charging mode, to keep the battery "fully" charged.
Hope this helps.
The article on Wikipedia about Li-Ion batteries is quite informative as well:
http://en.wikipedia.org/wiki/Lithium_ion_battery
It specifies the technology, the do's, the dont's and usefull tips in keeping your battery in good condition.
I've been seeing "Battery Calibration" a lot lately especially with custom Roms and how to improve battery life. Here is great info on prolonging battery life for your epic. And what NOT TO DO!
Forgive me if this is in the wrong section of the forum but I saw a lot here on this topic so I thought I would share the information I have.
Lithium Ion batteries DO NOT NEED TO BE CALIBRATED. Forgive me for yelling but I can't stress it enough. The current lithium ion batteries for your computer and most of all, your Samsung Epic4g do not have an internal memory. All they have is an internal chip that prevents them from overcharging, and of course the cells for the Lithium Ion process to occur.
Nickel Cadmium or NiCad batteries do have an internal memory that acts much like a fuel gauge in your vehicle, it tells the battery small information on % charge etc.
Your Samsung Epic 4G has to interpret the amount of charge left and % from your battery. That's why it saves battery stats. It really works by averages and the only thing the battery tells the phone is "I'm Full!" when it reaches 100%. or "I'm Dead!" when the cells are empty. Your phone does the rest and interprets to you in % how much life is left in that battery.
Someone got the not so bright idea of calibrating the battery, maybe because it worked on a NiCad battery, maybe it should work on a Lithium Ion battery? WRONG!
Lithium Ion batteries have a prescribed life. The average life of a 1500mAh battery is around 2000-3000 charges. The reason behind this is the Lithium Cells become unstable and are prone to explosion.
So, every time you fully discharge your battery and recharge it, you just shortened the overall life of your battery. And if you're one of those people who discharge and recharges 3 times consecutively, you're really messing up your battery. Heat is the biggest enemy of Lithium Ion Batteries, if they get too hot, from forced discharges they actually develop tiny crystals on the inside of the cells that prevent it from being truly 100% charged.
So, in reality your phone is telling you your battery is 100% charged when it is only 85% fully charged inside the battery.
Please, please, please, do not discharge your battery and consecutively recharge it again. I love my epic and I hate to see other epics abused like that.
If you want to prolong your battery life follow these short and simple steps:
1. The closer you keep your phone to 100% the longer it will live.
2. Avoid unnecessary discharges to 0%.
3. Charge your phone when it is off, not in standby. - Charging in standby causes unwanted heat.
4. Unplug your battery when it's fully charged. - Sure, that "Battery 100% Full" message is annoying, but maybe it was put there for a reason? Hmm.
5. Wipe your battery stats weekly, only after a full power off charge, or Rom Change
6. Avoid doing anything that heats up your phone. - Sure WiFi Tethering and BlueTooth Tethering is awesome, but it heats up the phone in most cases, this will destroy your battery.
I can't post the link because I don't have enough posts. But go to google , search "battery university" and then look for lithium ion batteries.
I am a computer science / electrical engineer and I have done extensive research in batteries and mobile devices.
Please save those batteries!
-George
Interesting post. Thanks!
Sent from my Emotionlessly Bonsai'd Epic 4g.
A cycle is a cycle friend, whether dropping to 50% twice or dropping to 0% once ... it is still a registered cycle. Below is the best write up I have came across concerning battery care. Still trying to figure out the purpose of this thread however, if you are insinuating that a batt stat reset and full charge to discharge is not helpfull after a kernel change (voltage change) then you are sorely mistaken, it WILL, I repeat WILL cause your device to not register the true charge state of your battery unless you do so. And if your phone is not monitoring your battery correctly it could negate symbiance between your batt and your device.
Wiping your stats without a full discharge is useless btw. In the fact that one of the few things your post was accurate on is that the only two way communications between battery and device happen at full and empty. Would probably do a lot of good if this thread wrought with misinformation was deleted. Just in case it is not a really good caresheet is as follows.
============================
Lithium Ion Battery Care
Batteries are made to be used, so use them.
Just like couch potatoes, batteries need exercise. The chemicals in Lithium-Ion batteries respond best to regular recharging. So if you have a laptop, don’t keep it plugged in all the time; go ahead and let it drain to about 40 or 50 percent of capacity, and then recharge your computer.
The life of a Lithium-Ion battery can be measured in charge cycles. A charge cycle occurs when 100% of a battery’s capacity is used. Let’s say you use 50% of your laptop’s battery one day, charge it overnight, and then you use 50% of the battery again the next day. Even after charging it back up again, you’ll have only had one charge cycle occur. Most laptop batteries are rated for a useful life of at least 300-500 charge cycles, but high-quality, properly maintained batteries can retain up to 80% of their original life, even after 300 cycles.
Periodically calibrate your battery.
Most batteries that have a “fuel gauge”, like those in laptops, should be periodically discharged to zero. This can be accomplished simply by letting your computer run until it reports a low-battery state and suspends itself. (Do not let your computer deep discharge, as I’ll explain in the next item.)
The gauge that measures the remaining power in your laptop is based on circuitry integrated into the battery that approximates the effectiveness of the battery’s chemical compounds. Over time, a discrepancy can develop between the capacity that the internal circuitry expects the battery to have and what the battery can actually provide. Letting your computer run down to zero every month or so can recalibrate the battery’s circuitry, and keep your computer’s estimates of its remaining life accurate.
Don’t practice so-called deep discharges.
Most laptops will suspend operation if the battery drains too low. Even if your computer goes to sleep, though, most batteries that are in good working order will still have a reserve charge available. This reserve will hold the computer’s working memory in state for a little while. A deep discharge has occurred when even that percentage of reserve power is used up. The computer will have turned off completely, and sometimes you’ll notice that it will have lost track of the correct date and time. Deep discharges will strain your batteries, so try to charge them frequently.
Avoid exposing your battery to heat (when possible).
Heat can overexcite the chemicals in your battery, shortening its overall lifespan. In fact, it’s been speculated that the biggest cause of early battery expiration is the heat that batteries can be exposed to when they’re stored in computers that are running off AC power. Laptops — especially modern multi-core machines — can get very hot when they’re plugged in, easily over 100 degrees Fahrenheit. That’s hot enough that extended exposure will negatively affect your battery. If you want to be really protective, there’s nothing saying that you can’t pop the battery out of your laptop if you’re going to be within reach of a power outlet for a while.
There may be times that you can’t help but expose your laptop battery to heat; you may live in a warm climate, for instance. You can, however, try and avoid exacerbating the issue. Make sure your laptop is well ventilated and that you’re not operating it on a surface that retains heat, even when you’re not plugged into mains power.
Store your batteries properly.
If your laptop or portable device isn’t going to be used for a while, you should remove its Lithium-Ion battery, if possible. Even if the battery can’t be separated from the device, it should be stored in a cool environment at about one-half charge. Cool temperature is recommended by experts because that can slow the natural discharge that batteries will undergo even when they’re disconnected from their device.
I’ve seen some people go even further and recommend that spare batteries be stored in the refrigerator. I don’t think this is a very good idea; I’m concerned about condensation that might build up. Don’t put your batteries on ice, but keep them out of the sun.
Ultimately, I believe that buying spare Li-Ion batteries is a losing game, because the batteries start degrading as soon as they’re manufactured. Usually those spare batteries spend most of their time sitting in a charger, losing useful life. If you need to be really mobile, you’re better off purchasing an adapter cable you can use with the power sources available in planes, trains, or autos. And, of course, by taking good care of the battery you already have."
One question in regards to your post. I currently use the desk top cradle to plug in when I get home, will this mess with the battery too? It was made by Samsung I am confused as to why they would make something to use with your epic if it will hurt the battery.
HeisRisen said:
A cycle is a cycle friend, whether dropping to 50% twice or dropping to 0% once ... it is still a registered cycle. Below is the best write up I have came across concerning battery care. Still trying to figure out the purpose of this thread however, if you are insinuating that a batt stat reset and full charge to discharge is not helpfull after a kernel change (voltage change) then you are sorely mistaken, it WILL, I repeat WILL cause your device to not register the true charge state of your battery unless you do so. And if your phone is not monitoring your battery correctly it could negate symbiance between your batt and your device.
Wiping your stats without a full discharge is useless btw. In the fact that one of the few things your post was accurate on is that the only two way communications between battery and device happen at full and empty. Would probably do a lot of good if this thread wrought with misinformation was deleted. Just in case it is not a really good caresheet is as follows."
Click to expand...
Click to collapse
Don't quite know if you're trying to "one-up" me on battery life, but this post is not misinformation, I am trying to explain in layman's terms on how a battery communicates with the phone. I don't need to cite my academic pedigree and be all "scientific" about saving battery life.
The point of this thread is an answer to all the threats I've seen on improving battery life and the countless posts I've seen on fully discharging a Lithium Ion Battery to "calibrate it"
The point I don't quite understand about your reply to this thread is that it just restates what I already pointed out only it's longer. Maybe if you have more words than me it makes you smarter...
but I stand corrected, I did mean a wipe of battery stats after a Rom Change and Only after a full power off charge, not intermittently.
but...
"one of the few things my post was accurate on" - Hmm, if it's an inaccurate post to you, just report it. - I assure you these are not claims and theories but pure fact.
I'm not here to get into a pissing contest about battery life, I'm just posting here to help people...
emalia said:
One question in regards to your post. I currently use the desk top cradle to plug in when I get home, will this mess with the battery too? It was made by Samsung I am confused as to why they would make something to use with your epic if it will hurt the battery.
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I would advise that as long as you are charging your Epic in the cradle while it is not powered on, then you'll be perfectly fine. Charging it while it is powered on will cause unnecessary heat.
And I finally accumulated enough posts to cite my sources:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
I have to say that Laptop batteries are a lot different than cellphone batteries, the "do a full discharge after a few weeks" works great for a laptop battery but I would not do this with a cell phone battery. They just aren't the same internally. Laptop batteries are a bit more sophisticated.
actually, lithium ion batteries are best kept at about 50%, not 100
This thread is simply a point of ignorance about what is being described when people talk about "calibrating a battery" on an android phone. The process is not actually about calibrating the battery. It actually calibrates how the software reads battery information. You do see better battery life after going through it, but nothing has changed about the battery.
If you've ever flashed a ROM and suddenly found the battery to significantly higher or lower percentage displayed in the software meter, or if you found the battery seems to drain more quickly than previous(it doesn't, the phone just shows higher than actual charge to start), those are symptoms of poorly or not-at-all calibrated situations. The "battery calibration" process is a fix for that.
And OP, I'd say your understanding is rudimentary at best. While its true that Li-ion batteries don't "have a memory" (no batteries "have a memory", the memory effect was a result of the chemical process used by some batteries), li-ion batteries do show better usable lifetimes when charged according to certain standards. Again, its a matter of how the chemical process works and what wear the battery's internals develop depending on it is used.
akijikan said:
This thread is simply a point of ignorance about what is being described when people talk about "calibrating a battery" on an android phone. The process is not actually about calibrating the battery. It actually calibrates how the software reads battery information. You do see better battery life after going through it, but nothing has changed about the battery.
If you've ever flashed a ROM and suddenly found the battery to significantly higher or lower percentage displayed in the software meter, or if you found the battery seems to drain more quickly than previous(it doesn't, the phone just shows higher than actual charge to start), those are symptoms of poorly or not-at-all calibrated situations. The "battery calibration" process is a fix for that.
And OP, I'd say your understanding is rudimentary at best. While its true that Li-ion batteries don't "have a memory" (no batteries "have a memory", the memory effect was a result of the chemical process used by some batteries), li-ion batteries do show better usable lifetimes when charged according to certain standards. Again, its a matter of how the chemical process works and what wear the battery's internals develop depending on it is used.
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Once again, I'm not in here to get into a specifics and scientific pissing contest on how batteries work, I just put a guide on how to improve your battery longevity.
Not everyone in here is an electro-chemical engineer with a concentration in battery physics. Or whatever. So, stop ripping apart my post with your blabbering physics. Just because I have a low amount of posts makes me inferior to you?
I'm sorry you sensed hostility in my post. But don't ignore what I'm saying about battery calibration.
I think Aki is right, we aren't calibrating our battery, we are resetting battery stats the software keeps. The reason we recommend this is b/c when folks change ROM's some can get miserable battery life in practice until they reset the stats. An experienced dev can tell you why, but it is a common enough fact to warrant wiping battery stats when switching ROM's.
Sent from my Epic 4G on XDA App
akijikan said:
I'm sorry you sensed hostility in my post. But don't ignore what I'm saying about battery calibration.
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It was a bit hostile... I enjoy a good debate and rational thought though, I understand what you're saying, I'm not trying to get into the specifics, but it seems a lot of users are doing this "process" too much, and personally I don't think you should do it at all. I think you should do a full recharge (powered off, not discharge) then wipe battery stats. Period. No need for a discharge to 0.
People, this guy is just trying to help. There is no need to be rude. We are all on this form trying help each other. This whole idea is hurt when someone posts something and gets attacked. There is no need to call someone ignorant if you don't agree
Sent from my SPH-D700 using XDA App
codest3r said:
I think Aki is right, we aren't calibrating our battery, we are resetting battery stats the software keeps. The reason we recommend this is b/c when folks change ROM's some can get miserable battery life in practice until they reset the stats. An experienced dev can tell you why, but it is a common enough fact to warrant wiping battery stats when switching ROM's.
Sent from my Epic 4G on XDA App
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Personally, I've gotten the best battery life when I do what I just posted above. Which is a powered off charge to 100% then a battery stats wipe. Viola, no need to discharge all the way to 0 and back to 100. It just tears up your battery in my experience.
tatoniss said:
People, this guy is just trying to help. There is no need to be rude. We are all on this form trying help each other. This whole idea is hurt when someone posts something and gets attacked. There is no need to call someone ignorant if you don't agree
Sent from my SPH-D700 using XDA App
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I appreciate the support. If you think I'm dead wrong let me know. But the intent is far more important that the means of which I describe how the battery communicates with the phone.
I just want Epic Users to get the best out of their Epic.
I think a lot of people think they are calibrating their battery, but in all actuallity it's the information in the phone about the battery that needs to be callibrated.
gwcarpenter said:
I appreciate the support. If you think I'm dead wrong let me know. But the intent is far more important that the means of which I describe how the battery communicates with the phone.
I just want Epic Users to get the best out of their Epic.
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You have to understand that the battery percentage is calculated by the phone. If the phone has no way of knowing the actual battery percentage accept with an indication that the battery is full or an indication that the battery is dead, then logic serves that one would have to perform a complete cycle to get accurate statistics. Let's say you have an electric car that's 'fuel' gauge is based solely on an indicator from the battery when it is full and when it is empty. It was initially calibrated to go ~300 miles on a full charge. Now say you get a new engine that might use energy at a different rate than the previous engine (analogous to say a kernel update). You don't really know the percentage of the battery until you record how many miles you've driven before the battery becomes empty. For the statistics to be accurate you must record the statistics over the entire battery discharge cycle. If the only indicator the software has is full and empty, the only thing you can gather from the statistics without a full cycle is the amount of energy that wasn't a full cycle.
Another analogy would be being blindfolded and sipping water through a straw. If you are told that it is full when you start and you drink 25% of it and then we fill it up again. Now you drink the same amount, how much is left (keeping in mind you are still blindfolded.) You have no idea, because you haven't done a whole cycle. You have no idea if you just drank 25% or 50% or 75% because you have never finished it.
My point is, is that you can't record the full capacity of batteries without doing a full charge, discharge cycle.
gwcarpenter said:
Lithium Ion batteries DO NOT NEED TO BE CALIBRATED.
Heat is the biggest enemy of Lithium Ion Batteries, if they get too hot, from forced discharges they actually develop tiny crystals on the inside of the cells that prevent it from being truly 100% charged.
So, in reality your phone is telling you your battery is 100% charged when it is only 85% fully charged inside the battery.
If you want to prolong your battery life follow these short and simple steps:
1. The closer you keep your phone to 100% the longer it will live.
4. Unplug your battery when it's fully charged. - Sure, that "Battery 100% Full" message is annoying, but maybe it was put there for a reason? Hmm.
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Above are some things you said, and below I'm going to copy and paste some stuff from the article.
Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as "digital memory". Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate.
The worst condition is keeping a FULLY CHARGED battery at elevated temperatures
If possible, store the battery in a cool place at about a 40% state-of-charge.
Avoid keeping the battery at full charge and high temperature.
While the battery is kept fully charged, the inside temperature during operation rises to 45°C (113°F).
Batteries with fuel gauge (laptops) should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely.
gwcarpenter said:
Personally, I've gotten the best battery life when I do what I just posted above. Which is a powered off charge to 100% then a battery stats wipe. Viola, no need to discharge all the way to 0 and back to 100. It just tears up your battery in my experience.
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That is correct. Discharging to 0% does nothing. The most important thing is getting the battery as full as possible, and then reset the fuel gauge(wipe battery stats.) Personally, I use the external Samsung spare battery charger to charge the battery to full, then insert it in the phone, and boot into recovery and wipe batterystats.
What many don't understand is that wiping batterystats in CWM deletes the batterstats.bin file in data/system. So when you do a data wipe, you are wiping batterystats also. This is why it is important to have a full battery when flashing a new ROM. Something else to remember is that restoring data from a Nandroid backup will also restore an old batterystats.bin file, which is fine if the new ROM has a kernal that is the same or similar to the previous one, but it will negate any batterystats wipe you did before restoring data.
I was curious about the discharge cycle when trying to get battery calibration stats. Does it matter if you use the phone regularly, or should you "beat it up"? Didn't know if that would skew the results.
Also, in doing some searching, I've seen some people mention that fully discharging the battery is a bad idea because of damaging the battery or reducing it's lifespan, which is obviously a direct contradiction of the whole calibration procedure. Anybody have any thoughts on that?
Thanks!
schick79 said:
...Also, in doing some searching, I've seen some people mention that fully discharging the battery is a bad idea because of damaging the battery or reducing it's lifespan...
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I would just use the device normally.
As far as damaging the battery, it isn't going to happen. The people that say you will damage the battery by fully discharging it don't understand the modern Lithium Ion/Polymer batteries. Batteries now days have over current, over voltage, and over discharge circuitry either on the battery, on the device, or both.
When your Xoom says it is at 0%, the battery is not really fully discharged. It is at, let’s say 3.1 volts, which is far above the voltage (around 2.7 volts) required to damage the battery.
Everything you wanted to know about batteries...
http://www.batteryuniversity.com
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.
As we know our Z3 has a Lithium-Ion energy supply. There is a really nice site about charging Lithium-ion batteries, chargers and a lot more.
And I want to share this wonderful site with you here on xda: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
so like is it ok to keep the mobile charging overnight???
Yes it is, and has always been with lithium ion. Draining your battery makes the life span even shorter
greatgrandking said:
so like is it ok to keep the mobile charging overnight???
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crazymister said:
Yes it is, and has always been with lithium ion. Draining your battery makes the life span even shorter
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--------------------------------------------------------
Li-ion does not need to be fully charged, as is the case with lead acid, nor is it desirable to do so. In fact, it is better not to fully charge, because high voltages stresses the battery. Choosing a lower voltage threshold, or eliminating the saturation charge altogether, prolongs battery life but this reduces the runtime.
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After reading this there should be a little damage because the stress we cause with the full charge. But I guess the damage isn't as big in our case.
Well batteries have a regulation circuit to prevent that and some phones automatically discharge a little automatically after reaching max charge. Don't have to worry to much about that these days.
A good point for Li-ion batteries. Good thing to know.