FourSevens Flex Magnetic USB Battery Charger

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The FourSevens Flex Charger is a magnetic USB charger that works with all single cylinder rechargeable lithium or NiMH batteries. Two magnetic ends attach to either side of the battery, and automatically recognize battery polarities for safe, convenient use. The charger has a simple, tangle-free design offering the same portability as a pair of earphones. Works with any USB port for a maximum charging current of 750mA.