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AWG 16 insulated 10Pack copper crimp rings 1 × $2.85
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NCA Flat Top cylindrical Lithium Ion 5C Cell 21700T model 1 × $3.90
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10Pack M4 x 10mm Internal Hex Nuts with washers 1 × $2.38
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Heltec 3S-20S Universal Lithium Battery pack Low Temperature Heating Module 1 × $22.80
Subtotal: $31.93