iPad Air has 31% smaller battery, yet same great battery life

iPad Air has 31% smaller battery, yet same great battery life
The dramatically reduced size and thickness are among the many factors making the iPad Air so much better than the previous model. As a matter of fact, the fifth-generation iPad is the lightest full-size tablet in the world, as Apple itself stated during the device's official announcement. And achieving this goal has not been an easy task. Apple had to shave off precious micrometers from a number of components that go into the iPad Air, including its screen, its shell, and its built-in rechargeable battery. The latter, in particular, is 25% thinner. This, however, has led to a decrease in battery capacity. While the iPad 4 had a 42.5Wh battery, the cell inside the iPad Air can hold no more than 32.4Wh of charge – a 31% difference. 

Yet despite all that, the iPad Air can still last through 10 hours of active use, just like its predecessor. Or as Apple claims, its tablet can deliver 10 hours of web browsing on Wi-Fi or continuous video playback. How is that possible? Well, it all comes down to the overall efficiency of Apple's tablet – the efficiency of its hardware and the software controlling it, to be more specific. The new Apple A7 chip, despite being more powerful than the 32nm A6X used in the iPad 4, is more energy efficient, being built using 28-nm technology. Also, we wouldn't be surprised if the Retina display has been made less power-hungry, although this has yet to be confirmed. 

The moral of the story is that a bigger battery does not necessarily guarantee better battery life, as much as we love to compare the milliamp-hour capacity of cells used in phones and tablets. Clearly, the power efficiency of their hardware plays a key role as well, so think about that next time you marvel at the specs sheet of any company's latest flagship.

source: Apple

Related phones

iPad Air
  • Display 9.7" 2048 x 1536 pixels
  • Camera 5 MP / 1.2 MP front
  • Processor Apple A7, Dual-core, 1400 MHz
  • Storage 128GB
  • Battery 8820 mAh



1. GeekMovement unregistered

i would rather they keep the same size as before which is still plenty thin and just add a massive battery instead.

7. androiphone20

Posts: 1654; Member since: Jul 10, 2013

it has really improved for single-handed use

13. vincelongman

Posts: 5810; Member since: Feb 10, 2013

Are you seriously saying that the iPad Air can be used with one hand?

17. jbitounis

Posts: 54; Member since: Oct 08, 2011

Yes, he is. Being able to use a phone with one hand means you can reach anywhere on the screen with your thumb. Being able to use a tablet with one hand means you don't get tired holding it while watching a movie, reading a book etc. Don't confuse single-handed use of phones with single-handed use of tablets.

15. TwentyWendy

Posts: 65; Member since: Aug 12, 2013

Dedenne don't think people want dictionary sized tablets, light is carrying :3


Posts: 269; Member since: Sep 09, 2013

iPad air and iPad mini 2 are the best tablets available right now!

4. brrunopt

Posts: 742; Member since: Aug 15, 2013

"are the best tablets available for me right now! "

9. androiphone20

Posts: 1654; Member since: Jul 10, 2013

The man has a point simply

11. androiphone20

Posts: 1654; Member since: Jul 10, 2013

Did you check out the "Thermo Wizard" Mac Pro computer?

3. _Bone_

Posts: 2155; Member since: Oct 29, 2012

It's interesting that Samsung managed to add a larger battery into the smaller Galaxy S4, not bad capacity on the DROID MAXX and LG G2 either for their size. Of course the iPad air was all about making it lighter - and it's a nice achievement at 1lbs - but nobody wants to hear "smaller battery" no matter of the context.

5. brrunopt

Posts: 742; Member since: Aug 15, 2013

They are using the same A7 not a A7x version) so it will also take less power... Still, i don't why is everybody so astonished when the Xperia Z is only 26grm heavier...

8. androiphone20

Posts: 1654; Member since: Jul 10, 2013

Still, i don't why is everybody so astonished when the Xperia Z is only 26grm heavier... well it comes a long way and if someone's choice says apple your point simply doesn't count

16. ahomad

Posts: 175; Member since: May 15, 2012

and it is thinner and ~10 months old so it closer to previous iPad Launch. Lets see how the new Sony tablet compare to this in 2-3months

6. darkskoliro

Posts: 1092; Member since: May 07, 2012

Its all about efficiency (y) Don't make me carry around extra battery size and weight if you aren't going to optimise it properly. Not saying I don't want a big battery, I just want one that shows me numbers with the onscreen time rather than the back of the battery!

10. twens

Posts: 1186; Member since: Feb 25, 2012

just because apple says its 10hrs doesnt mean it is 10hrs. Iphonearena when did you review the ipad airs battery to know if this claim by apple is correct? I am an ipad 3 user and when i use it heavily battery drains like hell. it only last you 10hrs when you are not using it.

12. robinlim85

Posts: 86; Member since: May 03, 2013

shows me a device that doesn't drain like hell when use it heavily,i can drain my galaxy s3 in an hours playing some heavy games i doubt u has an ipad,my ipad last me well over 10 hours with mix of heavy and light application. sometime its goes a week without recharge with intermittent usage

14. mr.techdude

Posts: 571; Member since: Nov 19, 2012

Lol apple puts less battery to make their products thinner whereas Sammy puts bigger battery and still make thinner products

18. rantao333

Posts: 346; Member since: May 21, 2013

im more curious about how samsung reduce the capacity of battery while maintain battery life, and using metal body while made their phone lighter

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