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Powerbank (9x21700)

Powerbank (9x21700)

thingiverse

* 9x 21700 (Tesla-like) Li-ion battery's * 1x 3s BMS (thin, 6-10A) * 2x USB Step-down converter / module (QC3.0 support!) * 2x Power switches (14x8.5mm) * 1x Charge indicator (3s / 12.6v) (21x31.5mm) * 1x 5.5x2.1mm power socket * 4x 2x20mm screws Note: FreeCAD source file is available!

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