Background Activity allows apps to pull in data even when they're not being used. This doesn't mean you need to close apps Apple has debunked that theory , but it does mean you can force your phone to stop pinging the email server, for example. Here's how:. If you really want to get the most out of your battery, use low power mode. Some folks turn this on when their iPhone is about to die, but you can lengthen the life even if you turn it on at percent.
While there are rumors that letting your battery die all the way can be good — or bad — for your iPhone, there's no truth to them. Apple says it doesn't matter when you charge your iPhone, whether it has 50 percent of the battery left at night when you go to bed or nothing in the tank.
Apple explains on its website that its lithium-ion batteries work in cycles, no matter when you start to charge it. Wi-Fi consumes power, even if you are not using it to connect to a network. You can turn it off in the Wi-Fi status menu in the menu bar or in Network preferences.
Applications and peripherals. Disconnect peripherals and quit applications not in use. Otherwise those devices may drain the battery in your MacBook faster than normal. Open menu Close menu Why Lithium-ion? Maximizing Performance Service and Recycling. Maximizing Battery Life and Lifespan. General Tips. Tips for iOS Devices. Tips for Apple Watch. Tips for iPod. Tips for MacBook. General Performance Tips Update to the latest software. If you store a device when its battery is fully discharged, the battery could fall into a deep discharge state, which renders it incapable of holding a charge.
Conversely, if you store it fully charged for an extended period of time, the battery may lose some capacity, leading to shorter battery life. Power down the device to avoid additional battery use. Tips for iPhone, iPad, and iPod touch Update to the latest software. Always make sure your device is using the latest version of iOS.
If you are using iOS 5 or later, see if you need an update. If an update is available, you can plug your device into a power source and update wirelessly or plug it into your computer and update with the latest version of iTunes. Dim the screen or turn on Auto-Brightness to extend battery life. To dim, open Control Center and drag the Brightness slider to the bottom. Auto-Brightness adjusts your screen to lighting conditions automatically.
To improve battery life, you can turn off the feature that allows apps to refresh in the background. If the Mail app lists Background Activity, you can choose to fetch data manually or increase the fetch interval. If not, iOS 9 is just a few months away.
People with this issue have taken their iPhone in to the Apple store and had their batteries replaced. They still have the problem. Also, the problem seems to have surfaced with iOS 8.
After that my phone screen keeps blank all the time, without showing the battery charging. May I ask is this normal? Yes, it is normal. Just assume that your iPhone 6 will be fully charged in 5 hours. I have an iPhone 6, and when I calibrate, I let it charge for 5 hours. Hello, I was just commenting to know whether or not there are any updates concerning the iPhone 5s battery case that has been the center of discussion through the recent comments as I, myself have suffered from this case and I posted about my case from the beginning.
No updates, other than 8. It may help. I suspect it is a software problem with the iPhone 5S because battery life was acceptable before one of the iOS 8 updates. I also did some reasearch and it is mainly people with the 5S that have battery issues after an iOS 8 update. Someone with an iPhone 5S had their battery replaced, but the problem continued. This again leads me to believe it is a software issue. My advice — try updating to 8. That is a very helpful article! According to Apple, it limits the flow of electrons in the battery.
Draining the battery and recharging it once in a while will improve battery performance. What should i do??? Calibration only needs to be done occasionally. If you notice your battery draining quickly, then you should calibrate. I often top off my iPhone 6. I just make sure to calibrate it once a month or as needed. Apple recommends once a month.
My battery lasts about 1day and 5hrs what do you think? Btw thanks for the reply Appledystopia!!! Thanks for giving useful tips. That seems good. The most important thing is how much usage time you get out of your battery. Of course, it depends on what you do. If you are playing an online video game it will drain the battery faster than reading an electronic book. You can see which apps are using the most battery power. Charging your iPhone daily is not a problem.
If you are using it a lot, the battery will drain faster. If you are starting to see the battery run down rapidly, then calibration is a good idea. Try doing the calibration. If you recently upgraded iOS, that may explain some of the home screen battery usage.
Sometimes iOS updates will run an optimization process and do some iCloud syncs. It could also be that your battery needs replacement, but try the calibration first.
You can also wait for iOS 9, which is supposed to improve battery life. Also, check the strength of your cellular signal.
If it is weak, your device might be using more battery power to maintain a connection to the tower. Putting it on WiFi may help a little, but the cellular connection is still active in order to receive phone calls. If the cellular connection is a problem, you may want to consider putting your iPhone in Airplane mode when not in use. Unfortunately, this will prevent you from getting calls. I belive that could be a combination of uncalibrated battery and the IOS battery management.
This is unusual, however, other people experience this issue. The iPhone 5S seems to have the most battery problems. The best I can suggest is to wait for iOS 9 and hope it fixes the problem. Research the app and look at reviews in the App Store. My hunch is that it is a problem with iOS 8. Thanks for your suggestion. Therefore i believe its not an app problem, or at lest not the ones that are not already in the standard installation. What its annoying is that if its an firmware problem, apple should come with solutions before starts to bring new products that will have issues as well.
It will be very frustrating to know that after the IOS 9 everything starts to work again but i had destroyed the touchID function… cheers. Apple quality has gone downhill lately. They have been rushing out products to meet certain deadlines. For example, iOS 8.
I am a bit surprised that, almost a year after launch, iOS 8 is buggier than ever. We can only hope that Apple will take accountability and improve quality with iOS 9. With fewer features, it should be a better release. That said, I have grown weary of iOS. I will continue to buy a new iPhone every few years, but this is my last iPad.
My next coffee table device will likely be a small Windows notebook computer. Hi have a question, how long do you think should I charge my iphone 6 plus after I drained it when I am using my ipad charger? Because I know it will charge faster. Ds 5 hours still apply? An iPad charger will work faster, but it will also make your battery heat up. Battery University recommends using the appropriate charger, and not one with a higher wattage.
I charged my iPhone 4 with my iPad 2 charger a few years ago, as I was on vacation and only brought one charger. Even though I turned my iPhone off while charging, it was noticeably warm, just from charging. But if you routinely charge an iPhone with an iPad charger, it will diminish battery life. My advice — use the charger that came with your iPhone. For more information, check out this article.
Chances are your battery is shot and needs to be replaced. Try connecting it to the charging cable for a few hours. It might come back to life. If not, have the battery replaced. Lithium ion batteries will seize when the flow of ions stops, due to extreme drainage and being idle for months. I did this callibration thing, and before my ipod 5 battery would last a few hours on standby and 30mins-2hours if I was using it.
Now my batter doesnt even last 10minutes on standby. The lithium ion battery in the 5G iPod can only do about charge cycles. For most people, this will last approximately 3 years.
If you replace it, I recommend calibrating the battery about once a month. I have done this on every Apple device I own. My iPhone 4 is almost 5 years old now, and I have been calibrating it since I bought it. It still holds a full charge and I use it every day for playing music with Spotify and as an alarm clock. I also have an iPod classic that is almost 10 years old, and it still holds a charge and works for hours.
Consider having the battery replaced. If you are handy, you can do it yourself. Thank you for your post Appledystopia. I have not tried the calibration that you suggest here, yet. Before you try a full reset to factory settings, try this:.
It clears the cache of persistent data, including battery data. You can confirm this in the battery usage stats in Settings. You will see they are reset. There is quite a kerfuffle about this right now. You can try calibrating the battery.
It may be that certain apps are running content refreshes in the background. If this happens in airplane mode, it could be something as simple as screen brightness. If brightness is cranked up all the way, you should expect to lose charge rapidly, even in airplane mode. Keep in mind, the iPhone battery can last for about charge cycles. I really wish iOS tracked the number of charge cycles. It would make it so much easier to solve these problems. Even after calibrating as u said , battery drainage still there!!!
Bt when i hide battery percentage it did help a bit.. I already uninstall all the apps , brightness low , background app refresh is off , notifications are off!!! And my iphone is out of warranty!! Plz suggest something!!! My iphone is updated to 9. Is jailbreaking is an option???? A lot of people are complaining of diminished battery life after upgrading to iOS 9.
I think this is the problem. I recommend upgrading to iOS 9. Beyond iOS 9, specific apps are causing problems. Facebook is draining the battery , even when the app is closed and background content refreshes are turned off. They will fix that in an app update.
Other apps may have similar issues. This should kill the background process that Facebook or other apps are running, which causes rapid battery depletion. You will have to do this after using Facebook or any other app you suspect.
You might also want to turn on Low Power Mode, although this will slow down your iPhone. Unfortunately, you will have to wait for iOS 9.
It could be worse. Will this affect the battery life in general? It should be fine. Every iPhone I have bought, brand new, in shrink-wrapped packaging, has already been charged.
I believe they do this as part of their quality assurance process. They need to charge the phone and make sure it passes basic diagnostic tests before they send it out of the factory. Enjoy your new iPhone! I do it all the time. You just want to calibrate it every once in a while. I do know what you are talking about. I have bought rechargeable tech products and the instructions say to charge it all the way on the first use. This may be what Apple does in the factory.
With an iPhone, that is unlikely to happen, as Apple sells them faster than they can make them. I waited until January to buy it, 4 months after it launched.
Battery drain happens to my iphone just after the 8. Can you recommend a way of testing them? And is it worth recalibrating them all first?
I was going to configure them to leave the screen on, and see how long they take to go flat, no SIM or WiFi, no apps. But it means checking them constantly for up to 10 hours, maybe more.
Geekbench 3 is the best way to accomplish this task. It has a battery test that runs the CPU at a certain sustained rate, which simulates real world usage. When the battery finally dies, Geekbench records the amount of time it lasted.
You could do the same sort of thing without Geekbench. The battery usage should display the time since the last full charge. If the battery usage statistic proves problematic, you could set up a video camera and record the whole process.
Then you could time which ones die first and have a sense of when they shut down. You can set up a test by playing the same song or album on each device, in a loop. You want to make sure the devices are doing something, not just sitting idle.
You may just want to do your own test. Of course, if you sign on with the same Apple ID on all the phones, you should be able to use the same copy of Geekbench 3 on all devices. I let them all die and sit overnight, then I charged the best 8 overnight and rebooted them. They do have special diagnostic tools that no one else has access to.
Geekbench 3 is probably the best test you can find. Doing it myself would void the warranty. So I called every store and one agreed to do it. I gave up and just moved all of my networking equipment and connected it via ethernet. Where I live, the Geniuses are useless and unhelpful. Everyone I know has had problems with them. That may be why so many people come to sites like this instead of just bringing it in to the Apple Store.
It seems like you found a good enough way to do it, and you avoided the hassle of the Apple Store. Towards the end of the test, the results started to differ a lot from the previous test. Maybe the calibration caused that? Results are more similar this time, but still varying a bit.
Perhaps the cailbration gets refined a little more each time they go from dead flat to full. I just calibrated both my iPhone and iPad today after waiting too long, and I already notice a big difference. Facebook is the biggest culprit, with a known bug that drains the battery and slows down the phone. Even if you have background content refresh turned off and close the Facebook app, it will still run a rogue background process.
They fixed the iPhone version. I still have not upgraded my iPhone to 9. I will be writing a review of 9. If you use Facebook, this is most likely the reason for your rapid battery drain.
But since so many people use Facebook, it is the main cause of this problem. I have replaced the batteries on 3 iPhones now 4s and 5c. If that is the case then I woukd have to wait ages for it to completely deplete. It may be that the replacement battery is incompatible. Even major warranty providers are replacing iPhone parts with inferior parts.
This should reset the battery metering software. If it is not working, it may be due to some level of incompatibility. In the end, it might not matter that much. Are you getting a reasonable amount of battery life from each device?
It may have more capacity and this may affect the battery meter. Try using a different charger and cable, but make sure it is the same wattage as the original iPhone charger. Using a faster charger can overheat the battery, causing diminished battery life.
If you use Facebook, there is a known issue with the app. They just fixed it today, so update it. Read my response to Amber for more information. Also, make sure to install iOS 9. I only recommend the update for those who have already upgraded to iOS 9. Those who are still on iOS 8 should probably wait. I am having crashes in Safari and all other browsers they all have to use WebKit and Mail crashes.
I still find Spotlight to be unbearably slow at times. After calibration of battery its same as before it give only 2 hours of usage in my iPhone 5 iOS 9. Given the information, you should probably replace the battery. From what I understand, your iPhone experienced poor battery life before the iOS 9 upgrade, but it was even worse after iOS 9.
The battery only last for about charge cycles. Thank you so much for quick reply n the information I would like to prefer replace the battery…thank you agn. I using iPhone 5s since 8 month my Touch ID is not work when I setup a finger touch lock, also I have a problem of display at home screen my iPhones keyboard and other homescreen things are apear blurly and not at homescreen pls give the information and fix of it.
I rarely suggest this, but given the extent of your problems, it may be worth doing a factory reset. This will remove all of your apps, contacts, etc. You can then restore the backup and get your data, such as contacts, back. You will need to re-install all of your apps, but since you have bought them on the App Store, they will still be available. Please read this for more information on doing a full factory reset. Trying to trouble-shoot this over comments is difficult.
I am a new iPhone 6S Plus owner. I immediately upgraded the IOS to 9. The chipset is Samsung. I was expecting a much better battery life. The battery Usage now showing 7 hr, 21 min and Standby showing 26 hr, 14 min at the moment I was writing this message. That said, it depends on what you are doing. If you are playing games, watching streaming video or have the brightness up, you will experience less battery life.
You might want to upgrade to iOS 9. Even if you close the app and have background content refresh turned off, Facebook is running a background thread that consumes power and processor cycles. They have an updated app which fixes this. If you use Facebook, make sure to update the app. However, I have followed your steps of calibrating the battery, I drained it fully until the phone shut off, put it on charge for about 5 hours with the phone switched off, switched on the phone and did a reset and take the cable out.
Thanks for the info. I suspect that you might not see a huge difference, since your iPhone is new. It also depends on how you use it after it is charged. Other commenters have noticed a big difference on phones they have had for a while. I have also noticed improvements in battery life after calibration. Is it advisable to connect the phone to the charger when, for example, setting at the office for a long time?
How does that affect the battery life? You should try to calibrate it once a month or so. If you have been using your iPhone a lot and it feels warm to the touch, let it cool down before you plug it in to the charger.
I also turn off my iPhone when charging because it keeps it cool and charges faster. I have a link to a source in this article, and I have tried it myself. The question is will the calibration fix this problem? Calibrating the battery might help.
After some iOS updates, the battery metering seems to be affected, and calibration can often fix this. If you are using Facebook, there is a known issue with the app. The app does not clean up resources when it closes.
There is a constantly running background thread that uses battery power and CPU cycles. If you use Facebook, this is probably causing the problem. They have supposedly fixed the issue, so make sure to download the update. In general, some people are experiencing diminished battery life with iOS 9. My iPhone is still on iOS 8. The problem is that Safari and any WebKit browser crashes constantly.
I have about browser crashes per day. Hopefully they will fix it in iOS 8. Hi,thanks for your help,I want to know how can I reset the battery usage meter in ios9,as you know in ios9 there is an option to see the percentage that apps use the battery in 24 hours and 7 days ago, is it the way to reset this option? Then release both buttons.
This will reset the battery meters and other cached data. I just tried it on my iPhone. App-specific battery usage cannot be reset. It may be an issue with iOS. What version are you using? I am still using 8.
I upgraded my iPad to iOS 9. It could be that the battery needs to be replaced. You can try doing this yourself or take it to a qualified service technician. The Apple Store can also replace the battery. I do it about once a month. The original recommendation from Apple was to do it once a month. The higher wattage will overheat the battery when charging. I did it once when on vacation, and it was noticeably warm, even when my phone was turned off during charging.
The information I have read from Battery University also confirms that one should use a charger with the appropriate wattage. You can also use this adapter with your iPhone and iPod. Yes, you can use it and it will work. It will also heat up the battery and shorten its life. I stopped doing this because my iPhone was noticeably warm after using the iPad charger. Heat will shorten the life of lithium ion batteries.
Apple may recommend this because the battery will last within the warranty period if you use an iPad charger. If you want to keep your iPhone for several years, without replacing the battery, I recommend using the iPhone charger. There is debate about this. People contend that the iPhone will only draw the appropriate amount of current. From my experience, using an iPad charger will charge the battery faster and create more heat in the process.
I have done it myself when on vacation, but now I bring both chargers. They would save an enormous amount of money if they only had to manufacture one charger, due to economies of scale.
The bottom line for me is that my iPhone is noticeably warm when I use the iPad charger, even when it is turned off. When I charge my iPhone with the supplied charger, it is cold to the touch. Since heat damages lithium ion batteries, I prefer the coolest charging process possible. Apple is only concerned that the battery last 1 year. Where does it say that on the official Apple site? They will slowly lose power when not plugged into a charger or in the device they are charged with, so you should always charge them completely before taking them out.
Also, batteryuniverse. Not for an iPhone. I have done this on my iPhone 4 for years and the battery life is still amazing. When the iPhone is fully charged, it stops charging. Then the battery starts depleting faster if it is turned on , and then it starts charging again. When I hold my iPhone 6 after it has been plugged in and charging for 5 hours while turned off , it is cold to the touch.
It is the normal discharge, not a forced process. It can charge beyond that. I recommend charging the iPhone when it is turned off, which will minimize battery discharge after it is fully charged. It also keeps the battery cooler when charging. From my testing, 5 hours seems to work for the iPhone. Calibration should happen at a full charge in order to ensure a reliable battery meter. The only risk is that you might not fully charge your iPhone, which is why I recommend charging when the device is off.
If you continue to read the article, the Apple VP mentioned that they do that so you can leave your device plugged in without damaging it. With my iPhone 4, the manual mentions that lithium ion batteries need to be drained about once a month to keep the ions flowing.
I routinely top off my iPhone and iPad, and it will not damage the battery. Calibration is different and not something that should be done all the time. A bunch of tiny charges throughout the day is your second best bet, and going from zero to and then to zero on a regular basis will put the most strain on your lithium-ion battery. Or is that article incorrect for some reason? All I can say is that mine got warm when I used the iPad charger, so I no longer use it. As I mentioned, there is a lot of debate around this issue.
Do what you feel is best for you. I have read some research that topping off the battery will either do no harm according to Apple or prolong the life of the battery according to Battery University. There are some contradictions between reputable sources on this, so I am doing more research. Apart from occasional calibration, I just charge my iPhone as needed, usually when turned off. It all depends on how I use it. So far, my iPhone 4 is working well and keeps a full charge, almost like new.
It is almost 5 years old and I use Spotify on it every night, and charge it once in days. I also have an iPad 2 that still works for 10 hours on a charge. Some new information may indicate that topping off the battery is best. Heat is why full charges could possibly damage the battery, vs. The Gizmodo article also recommends draining and recharging the battery once a month.
No matter how long my battery is charged, it is always cool, because I usually charge it when it is turned off. I may be wrong, but my guess is that you have come to this site because your battery is not performing well. If your iPhone 6 is already experiencing battery life problems, my advice would be to examine how you have used and charged it, and maybe not do that. This will provide you with additional battery life and also improve the accuracy of the battery meter.
I can see my battery stats in my iphone 6 with ios 9. It seems to be a bug in iOS 9. After installing it on my iPad, I found it to be too buggy for my iPhone and 9.
My 5 year old iPhone 4 only needs to be charged every days, and I use it to play Spotify for hours per night. The screenshot is at the top of the page. I think an Apple VP is a pretty credible source regarding iPhone charging behavior. I have been a Silicon Valley developer for 15 years. I have been using computers since Regardless of that, anyone can do research and report their findings. The vast majority of tech writers have absolutely no background in technology. So how long do you leave it to charge regularly when you are not calibrating it?
It depends on how much charge it has left and when I need it. I can forward calls to another number while it is turned off. It that the original battery that came with the iphone 4?
Does the iphone 4 have a longer-lasting battery than the iphone 6 or the iphone 6 plus? The iPhone 4 has a smaller capacity battery. I expect my iPhone 6 battery to last longer. With the all-aluminum design, the case dissipates heat which should extend battery life.
The glass sandwich design of the iPhone 4 acts as a insulator, trapping in heat.
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