In our camera test, which mimics everyday use (zooming, flashing, shooting, and resting until batteries die), a top-rated Energizer lithium took 609 shots; the best of the alkalines, a Duracell ...

Remember Duracell’s PowerCheck? The idea was that a strip built into the battery would show if the battery was good or not. Sure, you could always get a meter or a dedicated battery tester ...