I know this is a very tricky question with several variables, but I feel my new 8 Plus's battery is not lasting all that much longer on a full charge as did my 5s. I am in the process of charging it back up to 100% now, and I will time it once it reaches full charge. It has basically just sat on my desk. I am not using blue tooth. I have Wifi turned on. I am not using any apps. I would expect the battery to hold a charge a lot better than this. Thanks.