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18650 x40 case
by TTGeek
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A module based 18650 battery pack.
Print the connector to join multiple x40 packs together, as many as you want!
Print the attachment board to mount stuff on the side of the pack.
(Added 15-09-2019) My 40p3s pack of old mixed type 18650 cells is still working great. i had a few cells go dead on me (cant hold charge for more than a minute), but that is because some 18650 cells just charge quicker than others and so they would over charge. I'm choosing natural selection for that problem.
(U
Print the connector to join multiple x40 packs together, as many as you want!
Print the attachment board to mount stuff on the side of the pack.
(Added 15-09-2019) My 40p3s pack of old mixed type 18650 cells is still working great. i had a few cells go dead on me (cant hold charge for more than a minute), but that is because some 18650 cells just charge quicker than others and so they would over charge. I'm choosing natural selection for that problem.
(U
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