The battery will have 30 watt - hours of capacity, which frankly seems a bit small — I doubt the new model will significantly outperform the old one in battery life tests. (digitaltrends.com)
Alas, running multiple battery life tests shows little has changed. (techradar.com)
Running multiple battery life tests in which the screen is on doesn't really capture this battery important new conservation trick. (techradar.com)