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dummy 18650 cell (adapter) — image 1

dummy 18650 cell (adapter)

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I built a dummy 18650 cell to use a charger as power source to charge a cell, that needs to remain inside a battery case

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I built a quick dummy 18650 cell to use a charger as power source to charge a cell, that needs to remain inside a battery case.

After printing I used adhesive copper strip to wrap around the ends and tinned the copper quickly (to avoid melting the PLA). 

Marking of polarity was done using sharpies :-)