As a photographer, I always need replacement batteries and chose initially for my Canon 50D no-name replacement batteries from the Internet. This although were much cheaper, but not worth the money. Despite fully charged (the battery charger indicator) these were filled in the battery grip the camera with two batteries after about 80 activations only 1/3. So you can not work. Therefore prefer 10 euros more for the brand battery and the photo world is back in order. Great and super fast processing by the vendor. Faster is not really and without additional postage. Even with a famous electric market, where there is no idiot to buy these batteries are not expensive. Super batteries that also hold what they versprechen.Alles Best and well recommended-both for goods and for the seller.