A battery life test run by the folks from Laptopmag has produced some predetermined results. They wrote an Android app to run a web browsing test in controlled environment (60 websites changed every 60 seconds), and turned off all but the cellular data connectivity options. The web browsing was left plain and simple, with Flash and other plug-ins off, and the screens remained on all the time with 40% brightness.

The results are not very surprising if you look at the official manufacturer’s numbers for the tested handsets, however it’s good to have them confirmed by a 3rd party as well. The worst performer was the HTC Droid Incredible, but the authors admit that the type of testing chosen takes the most toll on AMOLED screens. Their power consumption when showing white backgrounds, as found in most websites, is triple the one of regular LCD displays. In other circumstances like shades of gray or colors, they consume way less power, but white is a killer. If the testers had chosen continuous video play, for instance, the results of the Incredible probably would have been better. Not to mention that it has a 1300mAh battery, while most of the others tested are with 1500mAh ones.

Nevertheless, on top of the smartphone pack climbed the two latest DROIDs from Motorola. The DROID 2 lasted 7:07 hours, and the DROID X the whopping 7:42 hours. Considering these two handsets are with the power-sipping TI OMAP 3630 produced with the 45nm technology, those hours are quite explicable. We wonder if the Super AMOLED screens don’t have the same power consumption disadvantage to the LCDs when a white background is continuously displayed that the AMOLED ones have. That might explain the fact that Samsung’s Vibrant, Captivate and EPIC 4G fared worse than the DROIDs, regardless of the fact that their Hummingbird chipsets are produced with the 45nm process as well.

Of note here was the top-notch performance of the Dell Streak, which fitted right smack in the middle between the DROIDs with 7:35 hours of battery life as tested. And this is despite the large 5″ screen, and the 65nm Snapdragon inside. Looks like the Streak was born to browse.

Have a look at the full endurance chart below to see how everybody fared.
source: LaptopMag