From what I understand all the new batteries work the same unless they malfunction. They have a finite number of charge cycles and then they die. They tend to operate the same until they are at over 80% of their charge cycles. A lot of the stuff we all still hear is related to older technologies and makes no difference. So the hardware does what it is supposed to do. Charge and Discharge. Unless you got a defective battery. Battery life depends on all the things that draw juice. Obviously. So there will always be differences. I think most of my drain comes from weak signal, all things being equal, that is. Unfortunately, that is one thing that I have no control over.