Dear consumer,

A CTEK charger is provided with a serial number. This unique code provides essential technical details concerning, amongst other things, the programming of the microprocessor. Both the packaging and the charger are provided with a sticker with the serial number. We recommend you never accept a charger without the original serial number. In this case it concerns no original CTEK product and you lose every right to guarantee/service as a consumer. Do you have questions or any doubts? We will gladly provide you with further information.

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