Software updates can be a bit of a pain sometimes, but if you're a Microsoft Surface Pro 2 owner, the recent firmware and driver pack update is one you'll be quite happy to install.
That's because battery tests have revealed it results in a massive 25% jump in the Surface Pro 2's battery life thanks to streamlining the power requirements of the Windows tablet's Wi-Fi hardware.
Given the criticism (by some) of Windows 8, it's ironic that it's a software update that gets the plaudits for being behind a hardware improvement.
But so it is: Microsoft said one of the goals of the update was to reduce the Wi-Fi hardware's battery draw, and tests done by Anandtech appear to put a big tick in the job done box.
Video playback via Wi-Fi saw battery life jump by 16% with the update installed, rising from 6.65 hours to 7.75 hours.
The figure for general web browsing on Wi-Fi, meanwhile, jumped even further, rising from 6.6 hours to more than 8 hours.
As the graph above shows, the Surface Pro 2 still lags behind several tablet rivals. But given the theoretical nature of such benchmarks, the important comparison is to the pre-update Surface Pro 2 itself, and in that sense the figures speak for themselves.