lots of power, holds its charge a long time
I've been using these now for six months to power Canon and Nikon speedlights, LED lights, and PocketWizard radio remotes. They are fantastic. They charge quickly, hold the charge a long time, and deliver fast power to my devices. It's kind of criminal to be using alkaline batteries when you could be using these. Higher up-front cost, but long term savings for both your bank account and the planet.
Rating: 5 stars