Voltage: 21.6V Capacity: 2000mAh Battery Type: Li-ion Fit Model for: Shark IZ500, IZ531H, IZ540H, IZ541H, IZ562H, IZ562HC, IZ563H, UZ565H Compatible Battery Part Number? Shark XBATR620SL, XBATR625SL, XBATR625SLEU Notice Before Purchase 1.Please confirm the compatibility of this battery with your device by verifying your device model and the part number of your original battery prior to purchase. 2.A new battery typically reaches its optimal performance after 2–3 full charge and discharge cycles. 3.Ensure the battery connector is firmly and correctly seated in your device during installation. 4.To avoid impacting battery lifespan, refrain from using low-quality third-party chargers or adapters.