CWK 7800mAh 9 Cell Capacity Battery for Samsung AA-PB9NC6B Np-P530-Ja04 Np-R580E Np-R580Ve Np-R428-Ds13Cn Np-R428C R480-Ju01 Rv510-A0A Rv510-S01 Rv511-A01 Rv511-S03Fr Rv409E-S01 Rv409E-S Condition: Brand New - Grade A cells Battery Type: Li-ion Voltage: 11.1 Volt (10.8 Volt compatible) Capacity: 7800mAh (Better than 6600mAh) 90 Day Money Back. Buy with confidence!