OSTENT 1200mAh 3.6V Lithium Ion Rechargeable Battery Pack Replacement for Sony PSP 2000/3000 PSP-S110 Console Voltage: 3.6V, Capacity: 1200mAh Rechargeable and no memory effect. Fits right in the battery slot, and you cover it with the PSP battery cover Compatible model: Sony PSP 2000 (2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010), PSP 3000 (3001, 3002, 3003, 3004, 3005, 3006, 3007, 3008, 3010), PSP Lite, PSP Slim Trademark: OSTENT. Quality 3rd party product by OSTENT