Cameron Sino Technology Limited was founded in 2000 in Hong Kong, over 15 years battery manufacturing experience, and sell well in Europe and America. Compatible model NO: PSP 2th Silm Lite PSP-2000 PSP-3000 PSP-3004 Compatible Battery Part Number: PSP-S110 Specifications: Voltage: 3. 7V Rate: 6. 66Wh Type: Li-Polymer Capacity: 1800mAh Net Weight: 38. 0g / 1. 34oz Gross Weight: 88g / 3. 10oz Size: 58. 06 x 36. 20 x 13. 02mm If you are not sure, please send email to us with your battery details or pictures, we will give you professiol suggestions, and we will reply within 24 hours.