There’s nothing more frustrating than hearing the familiar ding of a dying battery. This scenario always seems to happen when there’s zero outlets in sight. Bummer, man. Nowadays, laptops are lasting longer than ever thanks to the energy efficient chips from Intel and Qualcomm. Many laptops we’ve tested here at PCWorld are pushing well past the 20 hour mark, a far cry from the days when eight to 10 hours was the norm. So, if marathon battery life is a top priority of yours,
