The day to day cost of batteries can adds up very quickly, but there are some tech items on which you may save money by ...

(Note that the batteries aren't rechargeable. In past tests we've ... and resting until batteries die), a top-rated Energizer lithium took 609 shots; the best of the alkalines, a Duracell, 76 ...

This is the product's overall performance score, based on key tests conducted by our industry experts in the CHOICE labs.