Superb Choice New Laptop Replacement Battery for HP COMPAQ 411462-421 417066-001 EV088AA EX941AA HSTNN-LB31 411463-251 EV089AA EX940AA HSTNN-DB32 411462-141 411462-261 411462-321 411462-442 411463-141 411463-161 411464-141 417066-001 417067-001 432306-001 432307-001 436281-251 436281-361 436281-422 440772-001 441425-001 441611-001 446507-001 451864-001 452056-001 454931-001 455804-001 455806-001 460143-001 EX941AA HSTNN-C17C HSTNN-DB31 HSTNN-IB31 HSTNN-IB32 HSTNN-IB42 HSTNN-LB311 HSTNN-LB42 HSTNN-OB31 HSTNN-OB42 HSTNN-Q21C HSTNN-Q33C HSTNN-W20C HSTNN-W34C NBP6A48A1 ;9 cells Type: Li-Ion Voltage:10.8V Capacity:;6600mAh;9 cells; 1 year replacement warranty,30-day refund guarantee after the purchase. High Capacity Replacement battery. High capacity battery certified by CE and RoHS, This battery was tested and proven to match and/or exceed original specifications of HP products Each Superb Choice battery was tested at an original laptop by the manufacturer.