NP-BG1 Powerextra 2 Pack Replacement Battery with Charger for Sony NP-BG1 Type G Lithium Ion Rechargeable Battery Pack and Sony W Series Digital Cameras Powerextra products are certified, tested by manufacturer to match OEM product Battery Type:Li-ion / Voltage:3.6V / Capacity:1300mAh Rechargeable Li-ion battery for Sony NP-BG1 (Value, Dependability, Quality) Ships Directly from California US delivered FAST Products come with our Powerextra is 30 days money back,and 24 Hours friendly customer service!