Delivery time and packaging was adequate and fast. The batteries are in principle identical to the original batteries of the respective manufacturers. They comply with the technical specifications as good / bad as said originals. Negative falls on the somewhat inferior processing, which can be seen from the protective sheath of the battery. This is in my opinion not a security risk because only the outermost, geflämmte Kunsstoffschicht is affected. She makes the battery unfortunately slightly thicker than they should be, but they still fit into the battery compartment of my Hubsan X4.