Sony Cyber-shot DSC-WX80 Digital Camera Battery Lithium-Ion (3.7v, 1300mAh) - Replacement Battery for Sony NP-BN1 Battery Replacement battery for the Sony NP-BN1, Lithium-Ion (Li-ion) 3.7V (1300mAh) This Synergy Digital battery is fully compatible with the original Sony NP-BN1 Battery. You can rest assured that this battery will work with your Sony Cameras that use NP-BN1 and it can be charged with the original manufacturers charger. We use only high quality Japanese cells, so you are sure this battery will last for years to come. Synergy Digital is a very high reputable company that manufactures batteries and other electronic accessories for over 2 decades, all our products come with a 3 year manufacturer warranty.