Friend solved her power issues with a Samsung S6 (not Edge) by purchasing a battery case. One of the good ones -- support-wise, at least; her case happened to

Friend solved her power issues with a Samsung S6 (not Edge) by purchasing a battery case. One of the good ones -- support-wise, at least; her case happened to go wanky, and their lifetime warranty replaced it. Don't remember the name of it: Mo... something or other? She's on her phone all the time -- the cause of her needing more juice. I looked for such a case for my Nexus 5x; none to be had. A consideration, the next time I buy a new phone. Wonder whether, with its attempt to be more mainstream, there are such battery cases for the Pixel (and upcoming Pixel2).