Szdcoo 10.8V 4400mAh Li-ion Replacement Battery for HP — Compatible with HSTNN-IB42 / HSTNN-LB31 / HSTNN-OB31 / HSTNN-OB42 / HSTNN-Q21C / HSTNN-W20C / NBP6A48A1

Compatible Part Numbers: HSTNN-IB42, HSTNN-LB31, HSTNN-OB31, HSTNN-OB42, HSTNN-Q21C, HSTNN-W20C, NBP6A48A1. Battery type: Li-ion. Voltage: 10.8V. Capacity: 4400mAh. Physical specifications: 205.20 x 59.20 x 37.50 mm; Weight: 486.9g. Safety features built in: over-charge protection, over-discharge protection, over-heat protection, over-current protection and short-circuit protection — designed to keep your device and battery safer during use. Certifications: ISO9001, RoHS, CE, UN38.3, and MSDS. Before ordering, please verify your original battery’s part number to confirm compatibility and restore your device to working order. Purchase benefits: 12-month Warranty and 30-day Money Back Guarantee. We provide 7*24 hours customer service for any questions or support.