With one set of batteries (2 batteries) I get about 800 photos (about 5 to 10% flash)
Energizer Lithium have virtually no self-discharge and are at any outside temperature absulut reliable and last for hundreds of photos.
I therefore do not need a charger and can easily grab and take with my camera.
When the batteries are empty in the camera, I simply put a spare batteries and can take pictures immediately on and have again the capacity for several hundred shots.
