18650 Battery Holder

In the development of a solar meshtastic node I needed a better option to hold batteries in a waterproof box. https://www.amazon.com/dp/B07KXVQ88B?psc=1&ref=ppx_yo2ov_dt_b_product_details  I designed this to securely hold x3 protected 18650 batteries.  There is soldering involved to complete the box and battery +Positive and -Negative terminals will need to be installed.  https://www.amazon.com/dp/B0BMTXQ88F?psc=1&ref=ppx_yo2ov_dt_b_product_details  The holes are all printed to direct thread a 3mm machine screw however the bar to secure the batteries will need the hole made slightly larger with a drill bit.  Also 24awg wire was used in the grooves that contain the circuit.