RND Battery Charger for Samsung Galaxy Note 4 Smartphone with USB Output RND Power Solutions Spare Battery Charger with USB Output charges a spare battery. Simply connect your USB charging cable to start charging. Compatible with: Samsung Galaxy Note 4 Compatible With: Samsung Galaxy Note 3 | 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.