Capacity: 1500mAh Battery Type: Li-ion Voltage: 22.2V Model numbers fit to: Dyson DC31, DC34, DC35, DC31 Animal, DC35 Exclusive Compatible battery part numbers: 917083-01, 17083-2811, 18172-01-04, 17083-4211, 18172-0201, 917083-03, 917083-05 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'.