That sound you hear is the beep of a laptop shutting itself down because it ran out of juice. Between February 2012 and February 2013, the average battery life for an ultraportable notebook we tested at LAPTOP dropped from 6 hours and 39 minutes to 5 hours and 52 minutes. That’s not progress.
In their rush to slim down their notebooks and add touch screens to them, vendors seem to have forgotten about battery life. Unfortunately, users haven’t forgotten what it’s like to stay chained to an outlet or run out of power halfway through the day. The answer to these problems is simple: use higher capacity batteries and lower-power parts. Intel says its upcoming Haswell platform should consume a lot less juice, but we don’t know how much impact that will have on battery life overall. The average 13-inch or smaller notebook should last more than 8 hours, not under 6 hours, on a charge.