What good is a smartphone if you have to charge it every six hours or so? That's why the last couple of years phone makers have been trying to hit the right balance between potent specifications and acceptable battery life. In the case of the Sony Xperia E5, the company's credo is "more battery equals a happy customer." That's why the small 5-incher boasts a 2,700mAh battery and happily, it's neither overly thick nor too heavy. During our testing of the phone, we had a glitch with a faulty software resulting in the need to redo the battery life test. Thankfully, it was quickly...
Source: http://www.gsmarena.com/sony_xperia_e5_battery_life_test-news-19293.php