TP4056 18650 battery charger
thingiverse
I recently got hold of a couple of notebook batteries... ... So I needed a battery charge and test setup. I build a charger holder around my battery booklet thing: https://www.thingiverse.com/thing:4113164 This adds a piece for the TP4056 in front of the holder and some slots on the sides for the cables. I put 4 of them next to each other on an old ATX power supply. Also next to it two ZB2L3 modules also connected to the holders to discharge the batteries and measure the capacity.
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