BM Premium NP-BN1 Battery Replacement for Sony Cyber-shot DSC-W690 Digital Camera NP-BN1 NPBN1 Li-ion Battery for Sony Cyber-shot DSC-W690 DSCW690 Digital Camera Battery Specifications - Energy Storage Capacity: 1300mAh /Voltage: 3.7 volts, Chemistry: Li-ion 100% Memory Free Super Long Time Recording Battery has a one-year warranty Includes NPBN1 Battery + Micro Fiber Cleaning Cloth