- Apr 4, 2013
I would like someone to advise me how to use less battery please. Yes, it's an odd question but there's a method in my madness. I'm about to start (hopefully) using a mifi for rail journeys that could take up to five hours. If the mifi is a success, I might try to use my galaxy tab 3 longer than the battery will allow, so if I can make a few adjustments (power saving) then maybe I will be able to have a degree of success.