Maximalpower NIK EN-EL5 Battery for Nikon Coolpix P3, P4. P5000, S10, 3700, 4200, 5200, 5900 & 7900 Digital Cameras, Fully Decoded w 3 yr warranty 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