However, I removed one star: the range "unpack Frustration-Free" is an interesting concept, but less packaging would have been welcome from Amazon, it is a minimum !! :
The ten batteries packed in a plastic film, themselves packed in a cardboard 12cmx20cmx4,5cm !!! with its share of paper booklets of use (is it really useful for batteries?) and cardboard wrapped himself in the traditional Amazon shipping box.
So packaging concept to further improve the level !!