Ever since the first Android phone appeared, we've been developing a battery test that would accurately gauge their endurance, and lend some objective data to our anecdotal tests.

The worst phone for battery life that we tested was the HTC Droid Incredible, which managed an average of only 4 hours and 33 minutes, compared to the Droid X’s 7 hours and 42 minutes of endurance.

Ultralife has entered into a technology partnership with Mississippi State University (MSU) to develop fuel cell-battery portable power systems enabling lightweight, long-endurance military missions.