Halcyon 2200 mAH Lithium Ion Replacement Battery for Sony NP-FW50 and for Sony SLTA37, SLTA55V, SLTA35, SLTA33, NEX-6, NEX-5R, NEX-7, NEX-5N, NEX-F3, NEX-6 Alpha Digital SLR Cameras Package Includes: 1 Halcyon Brand Battery Battery Specs: 2200 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 Sony NP-FW50 Digital Camera Batteries