That seems to be what I am getting with my Hero and Moment. I always end up near a charger, if it's in the car or in my classroom, so I never really think much about it. With the Hero that I tend to use regularly, I just throw my TP2 battery ion my purse so I never have any worries. Budney does have a point, compared to other Seidio covers, at least they "tried" to streamline this one a bit. I would say grab it just to have for a day when you know you will need it, but it's hard to justify $70 for that view. Let me know whatcha do though, I am curious how much better this will make battery life.