Take a look at a smartphone from a few years ago compared to something available today and you'll find a number of major differences. Screens, processors, operating systems and more are advancing at a breakneck speed. However, battery tech has been stuck moving at a relatively glacial pace, as evidenced by even some of the highest spec'ced smartphones of today struggling to make it through a full day of use. This is where Motorola stepped in with the original RAZR MAXX by infusing the DROID RAZR with a large battery to keep even the heaviest of power users satisfied. Fast forward to today and you'll see they're at it again with the Motorola DROID RAZR MAXX HD, an update to the original DROID RAZR HD, which we reviewed here.