Capacity: 550mAh Battery Type: Li-ion Voltage: 3.7V Model numbers fit to: iPOD 3th Generation, iPod 20GB M9244LL/A, iPod 15GB M9460LL/A, iPod 30GB M8948LL/A, iPod 10GB M8976LL/A, iPod 40GB M9245LL/A Compatible battery part numbers: 616-0159, E225846 RoHS approved for toxic free. CE and ISO9001 Certified for Quality Assurance. Search Tip: Press Ctrl and F keys to prompt a search dialogue box, then type in your device's model number and click 'Find Next'.