amsahr Replacement Battery for HP MY02XL, My02xl, TPN-Q127, HSTNN-IB5C (21Wh, 2 Cells) - Includes Mini Optical Mouse Includes Mini Optical Mouse with Retractable USB cord and ONE Compatible Laptop Battery 18 Months Manufacturer Warranty, 100% Compatible Non-OEM : Lithium Ion (Li- ion) Long Life Battery: Rechargeable with No Memory Effect and Power Surge Protection. 21Wh, 7.4Volts, 2 Cells Protective Retail Packaging, Each Product is Sealed with Anti-Static Shield Sleeve. Exclusive Offering of High Performance, Long Lasting, and Durable Grade A Cell Battery