Wasabi Power Battery (2-Pack) and Charger for Sony NP-BY1 and Sony HDR-AZ1 Action Cam Mini Includes 2 batteries and 1 charger for the Sony NP-BY1 battery Each battery features Japanese cells, 3.7V, 1000mAh Mini rapid AC charger features a fold-out US plug, 110-240V input voltage, car charging adapter, and European plug Batteries work with the original Sony camera and charger; Charger works with the original Sony batteries All items include a 3-year manufacturer warranty