If you own a beautiful HTC One M8 on T-Mobile and like to test how long a battery can truly last, well HTC has you covered. An update has begun to roll out that adds Extreme Power Saving Mode. For a quick refresher, Extreme Power Saving Mode can be set to turn on at specific battery levels or manually. It will significantly dumb your phone down, but it will let you squeeze out a few extra hours from the little bit of remaining battery you have left. Head to to your settings now and get to downloading.
Image Credits: HTC