Capacity: 3600mAh Battery Type: Li-Polymer Voltage: 3.7V Model numbers fit to: Cowon PMP A2 20GB, PMP A2 30GB, PMP A3 60GB, PMP A3 80GB 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'.