AgfaPhoto Photo batteries offer long-lasting, reliable power supply for digital cameras. With a voltage range of 3V and a lithium internal composition, they offer seven times more energy than alkaline batteries. They are recommended for high performance lithium battery cameras. A distinction needs to be made between CR2 and CR123 photo batteries, although they may seem almost identical to each other, there is a difference in size and power between the two batteries, they are not counterparts of one another.