I own 2 Pack's these batteries. Of this I use a constant, and the second is for a year in Fotorucksack just around. Now I had the case that it was used only for recharging was no time. To my surprise, it saved the whole evening. Approximately 40 shots with a professional lightning were possible. After that, however, the event at the end, the battery was not. Hats off. My recommendation is eneloop.
