Is CR-2 battery Equivalent to CR-123?

[wshtb000]

My Canon camera use CR-2 batteries, but they are expensive. I tried to find rechargable CR-2 on Internet, but the closest (in shape!) I found is CR-123. So I want to know whether CR-123 is the same as CR-2???

Thanks!

 

[RussianSoldier]

CR-123s sound like the small circular type batteries...but I dont know for sure.
However, rechargeable batteries really wouldn't be the best idea for analog cameras, because you'll probably notice a large decrease in battery life. And they're just not suited very well for them anyways...