Yes, you can safely use our NiMH batteries without any problems. They can be used in place of your original batteries in almost all digital cameras , film cameras, flash units as well as most other electronic equipment. Actually when they are fully charged they will measure around 1.4v per cell . These batteries do not need to be discharged every time before recharging. NiMH batteries can be damaged from heat by overcharging but this is easily avoided by using a high quality, microprocessor controlled battery charger or a charger designed for NiMH batteries and charging as directed.
Cycle Life is dependent upon usage conditions and type of charger used.
Yes they do lose some capacity, but it is normally very , very gradual. This is true with all rechargeable batteries, but some have a very high rate loss. Our NiMH batteries are designed to have a much longer cycle life than older generation NiMH batteries. Keep in mind that this is the amount of charge the Batteries will hold not the quality. NiMH Batteries will all work very well in flashes, due to their very low internal resistance.