A:Answer Battery Life always depends on what your phone usage is. The battery life on this isn't great in the beginning until the software optimizes your battery. but after a few weeks of usage and draining my battery to 1% and let it charge to 100 and then 20 minutes on the charger longer once hitting 100 to calibrate the battery. I get over 8 hours on a full charge for on screen usage, it varies ive seen people get up to 10 hours of on screen time. You will most likely get around 7 to 8 hours of battery life on a full charge, if you're doing 20% to 80% charging method expect around 6 hours of on screen time. Also if you're gonna use some type of clone phone app to migrate your data, don't ever copy over your phones system settings, it can cause battery calibration issues.