(Note that the batteries aren't rechargeable ... Energizer lithium took 609 shots; the best of the alkalines, a Duracell, 76 shots; and the lowest-rated alkaline, just 49 shots. Our flashlight ...

Also, today's flashlights may be powered by anything from rechargeable lithium ... to 35 hours of use between battery changes. In a nod to its likely outdoor usage, Energizer has protected it ...

Unlock to see our ratings and compare products side by side The Energizer ... AA batteries models like the Ultimate Lithium AA are rated on multiple criteria, such as those listed below ...