These batteries are really incredible! I use this type of battery in my external flash and wonder again, how often and how quickly, the flash is recharged, though he had to give the full power. Sometimes one thinks of lightning must be connected to a power supply.
In a word, I'm thrilled!
If you then to "care" has a well-functioning charger (I suppose "Technoline BC-1000 Battery Charger"), then the use of rechargeable batteries makes when taking a lot of fun.