We know you can't wait for a battery rundown of the Nexus 5, and we made one as soon as we had a chance, with pretty foretold results. Google's Nexus 5 skimps on a few things to get to that juicy $350 price point without subsidies, and perhaps the most major one is its 2300 mAh battery capacity...
Source: http://www.phonearena.com/news/Our-Nexus-5-battery-life-test-is-here_id49127
Source: http://www.phonearena.com/news/Our-Nexus-5-battery-life-test-is-here_id49127