About this 3D model

Case for LYWSD03MMC to use it with 2 AA Batteries in series. Be careful and don't create a short circuit! (Even AA batteries can burn..) Needed Parts: Battery Contacts like https://www.amazon.de/dp/B0B1HJBQQD?psc=1&ref=ppx_yo2ov_dt_b_product_details Some Cables Soldering Iron