Many forums led me to these batteries and I'm really excited! The batteries last very very long and always deliver optimum performance for its lightning. I especially like that you realize when loading that all batteries are always on the same level - especially advantageous because even a single very empty battery drags all the others, because they have to compensate for it.
The shell is commendable, never had transportation problems and eats no place.
I would buy batteries again and can highly recommend it!