Cameron Sino 450mAh Replacement Battery for Apple iPod Nano 3rd ,G3 Generation 4GB 8GB , with Tools Kit 12 Months Warranty Replacement for the Following Battery Model/Part Numbers: 616-0337, 616-0311 Compatible with the Following Models:Apple iPod Nano 3rd 4GB, iPod Nano 3rd 8GB, iPod Nano G3 4GB, iPod Nano G3 8GB Capacity:450mAh 3.7V Li-Polymer Rechargeable Battery Pack With Tools Kit. Cameron Sino Over 10 Years Battery Manufacturing Experience