I am not about to waste money on disposable batteries, so I have a nice little collection of rechargeable batteries ... This package comes with an Energizer Recharge Pro, which can recharge ...

French researchers have announced a prototype of an 18650 sodium-ion battery. If you’ve bought a powerful LED flashlight, a rechargeable battery pack, or a–ahem–stronger than usual LASER ...

(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 ...