Thanks for this post. I've been using a different one. But I like the look and feel of yours better.
I don't concern my self too much about the info. But it's sometimes nice to know.
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How do you check your iPhone battery health?
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Thanks for this post. I've been using a different one. But I like the look and feel of yours better.
I don't concern my self too much about the info. But it's sometimes nice to know.
I like how your app reports the actual battery charge vs. what the system has reported as it usually reports 100% a while before the battery is actually charged to that point.
I am using a jailbreak app called BatteryLife. It tells the battery capacity left as well as charge cycles.
I almost bought a battery app to provide number of cycles and available capacity vs max as new capacity. Then I thought about it and I have not had a battery issue since the 6 Plus and now 6s Plus, I have not run out of battery or come close for 15 months. Knowing the milliamperes left or capacity, or number of cycles would not improve my use of the phone in the least bit. Perhaps interesting information. But basically useless information to me.
Phone gets down to 30% and I plug it in for an hour, it goes to 90% and I unplug it for another couple of days use. If I use it more strenuously I plug it in sooner. Using the iPad 2.1 amp power adapter I get a charge rate of one percent per minute up to the 90% level so 30 minutes gets me 30% gain. It's just simply not an issue. And since I will replace the phone in a year or two at most I'm anticipating the battery will last for that long. All my other iPhones have so far.
Phone gets down to 30% and I plug it in for an hour, it goes to 90% and I unplug it for another couple of days use. If I use it more strenuously I plug it in sooner. Using the iPad 2.1 amp power adapter I get a charge rate of one percent per minute up to the 90% level so 30 minutes gets me 30% gain. It's just simply not an issue. And since I will replace the phone in a year or two at most I'm anticipating the battery will last for that long. All my other iPhones have so far.
I have a bought on release date iPhone 6s whose battery recently has been appalling, it has gone from brilliant to having to charge it twice daily. Is ibackupbot reliable? Apple says there is nothing wrong but I have a 66 cycle count and a full capacity that swings between 800 and 1400 compared to design capacity of 1690.
It reminds me of my failing iPhone 5, this is the best result this morning, it started at 1100 this morning after a full night charging. Do I have a case with Apple as they state my battery is fine?
. Just after this post this now the health:
Just restarted and have now got this which mirrors ibackupbot
It reminds me of my failing iPhone 5, this is the best result this morning, it started at 1100 this morning after a full night charging. Do I have a case with Apple as they state my battery is fine?
Just restarted and have now got this which mirrors ibackupbot
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I think you definitely do, but maybe try a full charge-discharge-recharge to recalibrate, if you haven't yet.
66 cycles, the battery should definitely be above 90%.
It's a lottery... but some extremes just aren't acceptable.
My first iPhone 5S had 100+% after more than 250 cycles.
Congratulations to the developer of that app, super friendly and helpful with customer support, too.
Just to update, on the suggestion of the developer I did a full discharge and recharge and I can happily say this worked.
My battery health is 100%, but more importantly I have my perceived battery life back. I say perceived as running down my phone was an absolute challenge. In the end it took almost 3 hours of intense use to run it down from 16%. This included playing games, recording almost 30 minutes of video (4K most if it), Facebook etc etc. On this day I racked up 26 hours of standby and 9 hours of use. Obviously my battery hadn't degraded, the percentage meter was just seriously out of whack.
I probably hadn't fallen below 45% in about 2 months or so and given the highly conflicting information about batteries I thought running the phone down to nil wasn't a good idea. However, I will now do it once a month.
@waterface thanks for the reply and suggestions
My battery health is 100%, but more importantly I have my perceived battery life back. I say perceived as running down my phone was an absolute challenge. In the end it took almost 3 hours of intense use to run it down from 16%. This included playing games, recording almost 30 minutes of video (4K most if it), Facebook etc etc. On this day I racked up 26 hours of standby and 9 hours of use. Obviously my battery hadn't degraded, the percentage meter was just seriously out of whack.
I probably hadn't fallen below 45% in about 2 months or so and given the highly conflicting information about batteries I thought running the phone down to nil wasn't a good idea. However, I will now do it once a month.
@waterface thanks for the reply and suggestions
Good to hear! Mind sharing a screenshot of what the app reports now as maximum capacity? I have a 6s as well, wanted to compare.
Thanks in advance!
So Strange, that I have more than 532 cycles and nearly 97% health. Charging every day, and only doing calls, and emails.
Maybe a useful tip for people when their phone will fall of at 30/40%
When charging, press sleep and home button together to make it restart. After that, charge it all the way up to 100%. The phone "thinks" it will have 30% left but when your battery is bad, it will fall of. With this reset when plugged in, it wil calculate its battery life, so you have a more accurate measurement.
Maybe a useful tip for people when their phone will fall of at 30/40%
When charging, press sleep and home button together to make it restart. After that, charge it all the way up to 100%. The phone "thinks" it will have 30% left but when your battery is bad, it will fall of. With this reset when plugged in, it wil calculate its battery life, so you have a more accurate measurement.
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@Sjwhite26 (and I invite any other iP6s owner who will want to!) do you mind posting a screenshot of the "Battery Levels" tab in the Battery Health app when the phone is 100% charged according to the "Actual Battery Charge"?
Like this, only when you're fully charged as I just said:
Thanks in advance!
Like this, only when you're fully charged as I just said:
Thanks in advance!
https://itunes.apple.com/app/apple-store/id1048805552?mt=8
I recommend it - nice app and easy to read and understand.
Hey Sj.
So I've observed how those numbers behave. It turns out that if the system-reported battery capacity is for example 1700, when the phone is fully charged and still connected you will see the actual max charge in "Actual Battery Charge", which for my experience can be way lower than 1700- in my case 1630, or less. Which is also very close to the actual "maximum charge" value reported by coconutBattery. BUT, as soon as the phone starts discharging, that "Actual Battery Charge" will re-align with the value reported by the system,and it will then decrease independently from the system-reported one from there.
I don't know if I made myself clear.
However, if I can ask, could you post the same screenshot when full charge is reached but BEFORE unplugging the device?
Everyone else who wants to participate, feel free.
In alternative, a screenshot of coconutBattery with the fully charged device connected is also welcome!
Thanks to everyone who will contribute to my little survey
This thread is awesome! I want to say I found it cause my iphone 5s has been running down somewhat quicker than it did when new lately, I did the I backup bot test and it shows around 75% battery life, that is with a 80% charge. I will retest it once it fully charges. I have had the phone for 22 months and dont think it should be this low. is this about average? I recently got a galaxy S6 and i can go all day and still have 30-40% battery left and even at that percent it will last be a good 2 hours of heavy use atleast. needless to say I'm wanting to sell this 5s and just trying to make sure if i sell it i will not have issue with buyer reporting battery issues any time soon.
UPDATE: once phone was 100% charged and updated to latest 9.2.1 ios from 8.1.3ios, the battery is now showing 574 charge cycles, 1550 design capacity/1300 full charge capacity or 83% battery health. I will take that and say I'm satisfied. Opinions?
UPDATE: once phone was 100% charged and updated to latest 9.2.1 ios from 8.1.3ios, the battery is now showing 574 charge cycles, 1550 design capacity/1300 full charge capacity or 83% battery health. I will take that and say I'm satisfied. Opinions?
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Love the app. Thanks for sharing. Have a quick Q how does max capacity work or how is is calculated? My wifes old 6 has 500 cycles and still at 102.8% max capacity. That cant be right no? Other cases like my old ipad its 250 cycles and 88% which I definitely beleive. Thanks again!
I use Coconut Battery to check my iphone battery. I find it gives accurate info and the basic battery status.
Some degradation in battery capacity is to be expected and you should not worry too much about it as long as the phone functions properly. Bad batteries can usually be expected when you have unusual issues like the phone shutting down unexpectedly, very short life, or not charging properly.
Don't worry about frequent charging or "topping off" the battery. I keep all my stuff charged up so that I can count on a full day's use when and if I need it. My batteries last me for years.
Some degradation in battery capacity is to be expected and you should not worry too much about it as long as the phone functions properly. Bad batteries can usually be expected when you have unusual issues like the phone shutting down unexpectedly, very short life, or not charging properly.
Don't worry about frequent charging or "topping off" the battery. I keep all my stuff charged up so that I can count on a full day's use when and if I need it. My batteries last me for years.
In terms of how maximum capacity is calculated, the answer is that there is just one source for that information: The gas gauge chip. The gas gauge chip is a tiny IC that’s attached to the battery (so that when you replace your battery you’re also replacing the chip). Its job is to measure state of charge (how full the battery is), and maximum capacity over time.
The problem is that those two metrics are never accurately known. The chip has to guess (based on a fairly complex algorithm) the state of the battery at any given time. The algorithm is based on measuring the flow of electricity into and out of the battery as it charges and discharges and trying to calculate how full it is and what its maximum capacity is at any given point in time. The chip reports that to the system (iOS) every few seconds, and a nicely rounded version of that is the battery level you see in the status bar at the top of the screen.
Because the maximum capacity is nothing but an educated guess, those values can vary quite a bit. As the battery is charged and discharged, you will see the gas gauge revising the estimated capacity. Because of that, Apple has a simple mechanism to try and reduce the fluctuations: they round up the maximum capacity to 100mAh, so if the gas gauge says maximum capacity equals 2420mAh, Apple’s algorithm will show 2500mAh. This rounded number is what they use to calculate the battery percentage shown by the system.
The current version of my app shows the Apple rounded figures for maximum capacity, while many JB apps (like the one pictured above), as well as tethered solutions such as iBackupBot tend to show the raw values from the chip.
One recommendation I keep reiterating to users: In order to improve SoC and maximum capacity accuracy one should perform a periodic deep-discharge of the battery, where you completely drain the battery until the device shuts off on its own. I wouldn’t do it too frequently, about once a month should be fine.
Deep-discharge cycles really help the gas gauge determine how much energy is actually stored in the battery, and they tend to reduce the variability of all of those metrics, and therefore improve the accuracy of the battery percentage shown by iOS. To be clear, it doesn’t actually improve your battery’s capacity, but it’ll make the battery percentage (and other health readings, if you use the app) more accurate.