I’m power-hungry, although not in the way you might think. If your photo backpack is loaded up anything like mine, you have a lot of gear that requires batteries. Cameras, flashes, a light meter, a GPS receiver and a laptop computer make me more effective when I’m out shooting, but each piece of equipment requires power—lots of it. So when it comes to choosing the right battery to power all of those electronic gadgets, it’s important to understand our choices, especially when they impact our ability to create photographs.
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