Halcyon 2000 mAH Lithium Ion Replacement Battery for Olympus OM-D E-M10 Mirrorless Micro Four Thirds Digital Camera and Olympus BLS-5 Package Includes: 1 Halcyon Brand Battery Battery Specs: 2000 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 Olympus BLS-5 Batteries