battery and battery saver, i just ordered an s6 edge and i want to know how well the improved battery saver functions work. At work although i MUST keep my phone on it becomes a battery drain in a factory, how well does the battery savers work? VS my lg g3 which is a complete battery hog (even with savers turned on). Asking the community, let me know if i should get my portable charger ready for this phone or not.