First version of a 12V battery using 18 of 18650 cells and TPU/PETG 3d printed cage. Using KNACRO 3S Li-ion protection board from Amazon (15A max continuous current). Cells are from a disassembled battery pack from eBay; they are 2200mAh. I believe, this makes the whole battery be 2.2 x 6 = 13.2 AH (correct me if I'm wrong).
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STL file: https://www.tinkercad.com/things/fbDB6xoKeww
Sorry, this one has already been modified to fit the bigger controller board, for next version of this battery. In the video, black pieces are in TPU and yellow is PETG. Although I'm sure PLA can be used for everything, it really does help to have something flexible for the black parts.
Controller board for version 2: CF-3SJH25A-C
Available on Amazon and eBay.
