RND Dock + 2600mAh Standard Battery for Samsung Galaxy S4 ACTIVE with Dock Mode (compatible without or with a slim-fit case) Perfect replacement or secondary battery made specifically for your Galaxy S4 ACTIVE Smartphone. Power Protection Circuit included. Eliminates the hassle of removing your case. Supports majority of Cases. Compatible With: Samsung Galaxy S4 Active | RND Power Solutions products comes in professional retail packaging and offers a 1 year hassle free warranty. Authentic RND Power Solutions products will have our branding on the product and packaging.