Survive with Sony's hand-crank USB charger

How would you power a smartphone or other USB without a power outlet? Sony has an answer.

This charger could save a life, or at least a smartphone. (Click to enlarge.) Sony Japan

One possible solution to resurrect a dead phone resides in Sony's latest portable CycleEnergy USB charger with a built-in hand crank, due in Japan on June 20 for 8,000 yen ($100).

The modular charger (CP-A2LAKS) features a dual port unit capable of charging two USB-equipped devices and a built-in 4,000mAh battery chargeable via AC power.

A Sony press release states the large battery capacity within can deliver enough power to charge a smartphone about two times, with an additional reference noting it would take about two hours to give the Xperia Acro HD smartphone a full charge.

As for charging from hand-crank power, don't expect any miraculous numbers; it takes about three minutes of cranking for one minute of call time, and five minutes for one minute of Web surfing. Those seeking a full charge would need to crank for many hours. But in a disaster scenario where power no longer exists, that doesn't sound so bad.

See our comprehensive summary of emergency cell phone charging options here , or watch Donald Bell's video on the issue below.

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