I'm an iPhone guy completely lost trying to fix with my wife's Verizon Samsung Galaxy S-3. Her phone drains the battery insanely fast. I always half listen to her complain about it, then last weekend I had it charging off my fully charged, two week old mophie juicepack 6000mah and it killed it after being connected to hit for only an hour, two hours max and only charging from 10% to 43%. I have charged my Iphone 5, and ran my ipad for hours off that little box and have never had that happen. I then realized that shes not crazy. I checked the battery settings and it says the screen accounts for 80% of the battery use. But with knowing the screen is not on constantly that didn't make much sense to me. She frequently goes in and closes apps that are not in use to try to get through her workday without it dying. I used to have a droid incredible two or more years ago however have had iPhone since so I'm a little behind and rusty with this operating system. My iphone is a battery hog and often needs charged, but her galaxy is putting even my hog to shame!!
Any assistance will be greatly appreciated!