Lenovo ThinkPad X100e Ultraportable Review
Power Consumption and Battery Life
We're beginning to really understand why Lenovo bundled a 6-cell battery in with this machine, even though it protrudes from the rear. A 4-cell battery would've sat flush, but the battery life would have been extreme low. As it stands, 2 hours and 11 minutes isn't the worst, but it's not fantastic; most other ultraportables can get far more life out of a single charge, and while it's nice that you can carry around a spare battery if you need it, we wanted to see at least 3 hours here.
If you used the machine lightly and disabled Wi-Fi, you may be able to get 3 or 3.5 hours from a single charge, but we wouldn't bank on seeing more than that. We also noticed a good bit of heat during usage, so it's clear that something (likely the relatively powerful Athlon Neo CPU) is really cranking through some energy.