Capacity: 2250mAh Battery Type: Li-ion Voltage: 3.7V Model numbers fit to: Lenovo S880, K860, K860i, S880i, S890, A830, A850 Compatible battery part numbers: BL198 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'.