Category Archives: Energy

How to Convert your Metal Detector to a 12V Battery Pack from 18650 Li-ion cells with 3S BMS

Are you tired of buying the same pairs of 9V expensive batteries and throwing them away after few days of metal hunting?

One of the best options to recycle old 18650’s is to build a battery pack. With the correct BMS and number of 18650 cells your battery pack can achieve the desired operating voltage.

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