Its batteries are really excellent qualiter, he takes the shot on the last and low self discharge. (Loss of ~ 15% over 12 months)
I burden myself with Powerex MH-C9000 has 200ma and I get its 2600mAh battery More! (Given to 2,450 minimum) has 1.45V is simply excellent.
It is given for about 500 recharges (but by experience, if you load them properly that is to say with a good intelligent charger and low power (200 / 400ma max) you can learn much more) in any case, 500 loads the basis of one load a week it makes you anyway minimum 5 years!
Recommended for all lovers of batteries qualiter that we need power and longéviter (nothing to do with the batteries found in supermarkets)