*Fits right in the battery slot, and you cover it with the PSP battery cover *Capacity: 1200mAh *Rechargeable and no memory effect. Compatible model: Sony PSP 2000 (2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010), PSP 3000 (3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008...