Maximal Power DB NIK EN-EL19 Replacement Battery for Nikon COOLPIX S2500, S4100, S3100 Cameras Amazon.com is the only authorized dealer selling MaximalPower brand products. Please make sure your item is ONLY sold and shipped by Amazon.com! All other marketplace vendors are selling counterfeit products that do not perform the same, and/or are not covered by our MaximalPower Warranty Limited 3 years warranty Premium Japanese cell Compatible with Nikon COOLPIX S2500, S4100, S3100 cameras Capacity: 3.7V, 850mAh