Received the first battery was not working in my HTC Desire but the seller had the courtesy to send me another one (free of charge) ... only the second did not work better. Indeed, this second battery allowed me to get a half a second and then walk off the phone ... wholesale, barely time to read the HTC home screen and impossible to load more . I want to clarify that this is not an original product and the site that sell them is not in ability (or not done) to test the batteries before sending them to the client (I venture to provide that information since this is the one that provides me !!!! seller). So, I stayed with my two batteries on the arms (well rather the palm of the hand) because the seller did not want to send me a stamped envelope for the return (to England). I persisted in going to another Amazon seller (ACCESS2B.COM) and I received an original battery, cheaper and whose charging time is equivalent to the one I had when I bought my HTC Desire ... to the wise.