As accurately described by others, it is a low-quality battery. I experienced the following strange issue. My PSP did not turn on or charge at all. At first, I thought it was the charger's fault since it is not the genuine one. However, as soon as I started applying force to push the battery inwards, I saw signs of life, and then I realized that the battery terminals were not making good contact with the console's pins. Therefore, I had to open the battery and connect it without the plastic casing. I isolated the three pins as best as I could to prevent them from making contact and attached the battery to the PSP using double-sided tape. It worked, but it definitely does not last as long as the genuine one, despite claiming to have the same mAh. It is better to purchase a more reliable one.