Bests & Worsts Reviews from Amazon

I received this promptly, but it was just a charging case and battery. You need to use your own transformer and cable. I promptly charged the battery and tried it in my Galaxy S4. The battery lasted only a few hours and it overheated. I noticed the battery label said Manufactured in Korea, assembled in China. And I don't recall seeing a Samsung hologram on the packaging. The legit Samsung batteries I've seen were assembled in either Japan or Korea. I suspect the product I received was not legit. I returned this one, and ordered directly from Samsung (at a better price) and I received not only the charger case and battery, but a WARRANTY card, AND a travel power supply with cable -- plus a handy carrying case for your spare battery. Plus, the packaging had the legit hologram. My advice, get it directly from Samsung.