(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 ...

A new Energizer phone promises its battery will last up to 50 days on one charge. But this isn't a slim, sleek new handset - tech fans are describing it as an "absolute unit" and the "thick boi ...