6P stackable 18650 batteries holder

thingiverse

Here is my take on a 3D printed, solderless 18650 power bank/case design. Conductors are crafted from metal strips (~9mm x 150mm) with snapped-on Keystone 209 contacts. Batteries are connected in parallel, forming a 6P version that can be easily stacked to achieve higher capacities or paralleled for increased current output. Please exercise caution when building this project! Ensure you use the correct materials, wires, and battery polarity to avoid any potential risks. You assume all responsibility for any damage or injury that may occur. This is an early prototype, and modifications are likely to be made as work continues. Your feedback is valuable in refining this design. Here's a breakdown of the required components: 1. A 3D printed case is essential; two versions are available: one with mounting holes and another with improved ventilation. 2. Sixteen Keystone 209 battery contacts per case are needed, which can be sourced from Mouser.com for competitive pricing. 3. Two metal strips (8-10mm x 145-150mm) per case serve as conductors. 4. Four M3 10mm bolts and four corresponding nuts are required to secure the contact bolts in place. 5. Four M3 washers are necessary for added support. 6. Three to five M3 20-25mm bolts are needed to stack cases, while three to five M3 8-10mm bolts secure the cap in position. Please note that safety should be your top priority when working with electrical components and batteries.