Hi All, I had previously been racking my brains trying to figure out why on earth I was constantly getting less than 4 hours battery life with just web browsing and why my surface was hotter than the surface of the sun from just web browsing. Obviously I've disabled intel powerboost on battery to get those precious minutes of juice. However, I came across this the other day and its effectively given me another 1 hour or so of battery life: disable live tiles that you are not using! I have a windows phone and the live tiles on that are quite battery efficient. However, the same does not seem to be the case for Windows 8 live tiles. I've got around 30 live tiles pinned to my start screen and I went about disabling all but the essential ones for myself (mail, calendar, people and weather). From doing that I've netted myself another 1 hour in battery life. Secondary only to the powerboost tweak, this has really been the only tweak that gets me a real battery life increase (as opposed to the fake things like sleep settings). To be honest I'm not sure if its just one faulty tile app or its the fact that I had 30 of them. But I can only say I'm much more pleased now with how my battery is holding up. And really why do I need live updates on my highscore from some game... check those live tiles peeps! Edit. Further to the above, please also check the following repositories of background apps that run and consider whether or not they should be. Lock Screen Apps - These are allowed to run in the background and show notifications on your lock screen. Go to Charms, Settings, Change PC Settings, PC and Devices, Lock Screen... scroll down to see which apps are activated here. The good news is that a maximum of 6 are allowed. Notification Apps - These apps are allow to run in the background and launch notification balloons (think of the popup that happens when you get new messages/ email). Go to Charms, Settings, Change PC Settings, Search and Apps, Notifications... scroll down to see which apps are activated here. I had around 30 apps with this access which I culled back to a core 5-10. Most apps that can run in the background are frankly stupid (e.g. games which ask you to do a daily login). Reducing/ removing these will aid battery life.