After the battery of my PSP has passed into nirvana about a year ago half, I had long been searching for a replacement. Unfortunately, I have never found the original battery or if not to normal conditions and so I bought one of the labeled with 3600 mAh battery, since it has, after all, promised double the runtime. In the beginning this was true also, but after about a month of battery broke formally. Although he showed after loading to a term of approximately 8 hours, but the end of the flagpole was reached at the latest after not even 2 hours. I thought this is possibly a production error and I've done again such a battery. This was unfortunately even worse and has shown after one week a very bad performance. For these reasons, I decided a battery with less mAh to try because you have 3600 mAh my opinion misnomer. I've therefore this battery purchases and do not regret it completely. The battery shows after loading a remaining term of 5.5 hours and he thinks really through. Even after two weeks of intensive use of the battery shows any signs of fatigue and reflected over bravely. My recommendation therefore: Stay away from the 3600 mAh battery scrap and prefer testing this on here because of holding at least, what it promises.