5 of 6 people found the following review helpful
Great for external flash,
This review is from: Sanyo eneloop HR-3UWXB-4BP AA Mignon Batteries 2450 mAh (Pack of 4) (Accessory)
Bought these to power my Canon 430EX II speedlite. They arrived full charged as advertised (well at least I think they were full charged, if not then they are even better). The flash is ready almost instantly (maybe 1 second or less) after turning on, and has no problem firing the flash repeatedly. I have taken a ridiculous number of pictures using the flash and still not had to recharge them yet. Best rechargeable batteries I've ever had, more than happy to recommend.