I am showing my aftermarket battery as 14hours on battery and still have 53% discharging. I have not used my phone a ton today, but have taken photos, checked fb a few times, emailed, dl'd app, checked alerts, ran a movie briefly while surfing the web( just to see if I could-yes!- so awesome this phone!!). I have not used my original battery in a week. Only one of the 3 aftermarket batteries. To be clear the total cost of 3 batteries was $15 and not $15 for 1. I just hope all 3 batteries are as good and not not collapse in a month etc. Love this phone!