New test conducted by Which? Test Lab, a consumer test organization in the United Kingdom appears that Apple' iPad Air outperforms competing tablets by relatively large margin when it comes in battery life.
The battery usage test covered both Internet and video use, and included also iPad 2 and Retina iPad Mini, that the iPad Air bested them as well as tablets competing companies like Samsung, Amazon, and Google.
Each time we test a tablet we check the battery life for web browsing over wi-fi, with 3G (if applicable) and for video playback. To ensure parity across products we set their screen brightness to 200 nits (a reasonable daytime brightness level) using a light meter. We’ll also test how long the battery takes to fully recharge.
In the internet browsing test, iPad Air’s battery lasted for 658 minutes, or nearly 11 hours. The Retina iPad mini came in second place with 614 minutes of battery life (just over 10 hours). Surprisingly, the iPad 2, which was launched in 2011, took the third place with 590 minutes (almost 10 hours). while the Samsung Galaxy Note 10.1 and the Amazon Kindle Fire HDX 8.9 lasted just 483 minutes and 481 minutes (8 hours), respectively.
Source: Which? Tech Daily via MacRumors