3 ms·Installing flash block is often times the #1 way to improve your battery life.by icefox 14y agoInstalling flash block is often times the #1 way to improve your battery life.cryptoz 14y agoI don't have Flash installed, so Flash block isn't going to do much. Thanks though! :)aristidb 14y agoEven in 2010, 1 hour is not acceptable, but a reasonable number to expect from a high-end, lightweight 2012 laptop would be around 7 hours (using Linux).