21700 battery holder for ebike pack building
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securely holds four 21700 with channels for balance leads and nickel strip.
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This cell holder has enclosed channels for safely containing the balance wires and nickel strip. A small hole runs between the two channels to allow connecting a single balance wire to the nicke strip.
I used 24 gauge ribbon cable for balance leads, and .2x10mm nickel strip.
For reference I’m also including files for the rest of my battery build. These files are unique to my bike so you would need to make your own.. This build will contain a 1p20s pack and a spintend ubox lite controller. I am using SD28 connectors for an external BMS to save space. I am using an XT30 connector for the main charging current. Low voltage cutoff will be handled by the controller.