Two Halcyon 1500 mAH Lithium Ion Replacement Battery for Nikon Coolpix P520 18.1 MP Digital Camera and Nikon EN-EL5 Package Includes: 2 Halcyon Brand Battery Battery Specs: 1500 mAh with Premium Japanese Cells Halcyon Support: Includes 5 Year Halcyon Replacement Warranty. Full Membership Access to Halcyon Customer Support Website Frustration Free Packaging. No wasteful and dangerous plastic blister packs. Compatible with all cameras which take Nikon EN-EL5 Batteries