iPad Air 2 battery health down to 94% after less than 1 year

[Mcdevidr]

Guys, you make feel like I have no place here and you're lecturing me. If I act like a hypochondriac, you act like bullies. Joeblow7777, Da-Aaron and Little Endian, learn about tolerance and friendship and open mind. See you later on...

Calm down. They are not insulting you. It just seems you are fishing for a response that nobody, including apple is going to give you. The "geniuses" wont be of any help as they probably run the same diagnostic.

Its not the % of battery that satisfies, its the duration of the battery that will satisfy you.

 

[joeblow7777]

Guys, you make feel like I have no place here and you're lecturing me. If I act like a hypochondriac, you act like bullies. Joeblow7777, Da-Aaron and Little Endian, learn about tolerance and friendship and open mind. See you later on...

Maybe you won't be here to read this, but I did nothing but try to help you, and so did others. You just had no desire to listen.

 

[Little Endian]

I should also point out that batteries do not degrade in a perfectly linear way Just because your battery health is at 94% over 6 months of use does not mean that you will constantly loose 1% of health every month from here on out. My Nearly 7 year old MacBook Pro is a great example. I replaced the battery after about 6 years of use and some 550 charge cycles. I could have kept going for a while more but battery capacity had fallen to about 65-70% of its design capacity in the 6 months prior to replacement. Before the last 6 months though my battery capacity stayed at about 80-85% for a good 3-4 years. I basically lost about 10% capacity over the first 18-24 months. Then Battery capacity stayed relatively stable for another 36 months loosing maybe an additional 5% over that time frame. You can actually keep a log in coconut battery of your health over time so you can get an over all picture. Test your iPhone as well and compare it to the ipad. I highly doubt that your iPhone is in much better shape than your iPad unless it is brand new.

Your ipad should have at least 6 months left on warranty more if you Applecare. Check again after a 4-5 months and if battery capacity is still above 90% then you should be fine.

I have owned 3 iPads, at least 6 iPhones and other assorted smartphones as well as 3 laptops over my lifetime. I have tested battery capacity on multiple occasions over multiple devices and can say with certainty that battery capacity is at its full 100% design capacity for only the first 4-6 dozen charge cycles. It is normal for your battery to not be at 100% design capacity after 50-100 charge cycles and several months of use.

As I mentioned earlier calibrate your battery if you have not done so. I can gain a 3-4% improvement in capacity after calibration.

http://www.redmondpie.com/how-to-ca...attery-life-for-maximum-performance-tutorial/

with that said your battery may actually be @ 95-98% of design capacity.
[doublepost=1465322884][/doublepost]I should also add that on my most recent full charge my iPad air charged to 6541 mAh which is only 89% of its original design capacity of 7340 mAh. I still got about 10 hours of use on that charge.

 

[Juggar]

Guys, you make feel like I have no place here and you're lecturing me. If I act like a hypochondriac, you act like bullies. Joeblow7777, Da-Aaron and Little Endian, learn about tolerance and friendship and open mind. See you later on...

Just stop...... NOTHING is wrong with your battery. Even if it did loose 6% over 6 months thats still not an issue. Do you think that batteries just last forever? Good lord man talk about nitpicking...

 

[Synergie]

Hello and thanks for all your hints. I know batteries "degrade over time" but 7 months is not what I would call "over time". 6% degradation after only 6 months is troubling, at least to me. And I agree with you bodonnell202, those battery apps provide only an estimate. Yet the same app provided an estimated 100% of my Iphone 5s battery health. So it's back to "is it normal for an Air 2 battery to lose 6%". Add to that the fact that this is my third iPad Air 2. First and second had defective screens. Add the fact also that I lost 2-3 hours of usage time when I upgraded to 9.3.1. Now it's 10 hours, then it was 12 hours sometimes 13. So my tolerance vis-à-vis my iPad has become limited.

Does the app itself have a +/- % error tolerance? I can't see how any app that estimates something like this, could be 100% accurate. There is usually a +/- % tolerance. Let's say if the app is accurate even within 2-3% which would be amazing, then your battery could be like 99% in reality and show 96% with that +/- 3% error. My guess is however its more than likely around +/- 5% error (meaning if your battery was in reality 90% it could show anywhere from 85-95%) in which case your battery could still be 99% health and fall in that 5% error range. You can never assume that number is accurate to the exact %.

 

[eltoslightfoot]

I'll give the OP credit, when he threatened to retreat to his safe place, he really did. Dude is gone.