Insten Rechargeable Replacement Battery 1200mAh 3.6V Compatible With Sony PSP 3000 / PSP Silm 2000 Never run out of battery power when you are about to score the winning point. Save money and protect the environment by using the rechargeable battery Battery need to be charged before first use Voltage: 3.6V Compatible With: SONY PSP 2000 / PSP 3000