Engadget - Most of today's smartphones, especially those of the LTE-enabled persuasion, have earned a bad rap for exceptionally bad battery life, with large displays and hungry radios that suck the juice out faster than a three year-old can down a CapriSun. The race to construct the thinnest phones on the market doesn't help much either, since whittling down handsets results in less space for generously sized battery packs. The Motorola Droid RAZR is currently the slimmest phone this side of the Pacific, offering a thickness of 7.1mm at its thinnest end, and the title likely won't hold for long as new phones like the Huawei Ascend P1 S aim to knock the RAZR off its throne. But at what point do we stand up and insist on adding a little extra heft for the sake of having a bigger battery? (Motorola Droid RAZR Maxx, Phones) -