Four Halcyon 1500 mAH Lithium Ion Replacement Battery for Olympus TG-830 iHS Digital Camera and Olympus LI-50B Package Includes: 4 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 Canon LI-50B Batteries