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Hello, Thank you for your question. The SkimSure Credit Card Protector is powered by the inductive energy that is transmitted by the thief's device. The SkimSure Credit Card Protector can be powered up a certain amount of times and we therefore guarantee a life span of minimum three years. Let us know if you have any further questions. Have a great day!
Sorry, there was a problem. Please try again later.This question is answered elsewhere, but just to repeat: the card has a chip of its own, like the kind you might have at work enter your building or office. The chip is powered by the scanning device, which charges it while scanning it. After a certain amount of scans, the "battery" component of it is exhausted (just like you can only charge your laptop a certain number of times). Then it needs replacement.
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