This mounting plate is designed to fit perfectly inside a standard Zulkit 5.9x3.9x2.8in waterproof enclosure. It provides a clean, secure layout for your MeshCore/Meshtastic build, specifically tailored for solar-powered setups using WisBlock hardware and an MPPT.

Printing in ASA strongly recommended.

Features:

• Compatibility with RAK19003 + RAK4631 Core
• Dedicated mounting spot for a CN3791 MPPT solar charge controller
• Mounting for up to two 18650 lithium-ion cells

Bill of Materials (BOM)

• 1x Zulkit Waterproof Project Box: 5.9x3.9x2.8inch: [https://www.amazon.com/Zulkit-Dustproof-Waterproof-Electrical-150x100x70mm/dp/B08KY7VK8W](https://www.amazon.com/Zulkit-Dustproof-Waterproof-Electrical-150x100x70mm/dp/B08KY7VK8W)
• 1x RAKwireless 19003 + RAK1631 Core
• 1x CN3791 MPPT Solar Charge Controller: [https://www.amazon.com/Taidacent-Chargers-Battery-Controller-Charging/dp/B089ZVSQ4K](https://www.amazon.com/Taidacent-Chargers-Battery-Controller-Charging/dp/B089ZVSQ4K)
• 1x or 2x 18650 cells
• 1x or 2x 18650 Battery Holders: [https://www.amazon.com/DIANN-10pcs-Battery-Holder-Single/dp/B0BJV7SK5D](https://www.amazon.com/DIANN-10pcs-Battery-Holder-Single/dp/B0BJV7SK5D)
• 1x IPEX to SMA/N pigtail
• 2x M2 heat set inserts for 18650 holders: [https://www.mcmaster.com/94459A120/](https://www.mcmaster.com/94459A120/)
• 2x M2x6mm flat head screws for 18650 holders:  [https://www.mcmaster.com/92125A052/](https://www.mcmaster.com/92125A052/)
• 3x M2.5x6mm screws for RAK board: [https://www.mcmaster.com/94500A213/](https://www.mcmaster.com/94500A213/)
• 3x M2.5 heat set inserts: [https://www.mcmaster.com/94180A323](https://www.mcmaster.com/94180A323)
• 2x M4x8mm screws for mounting the plate to the Zulkit enclosure
• 1x M12 3mm-6.5mm Dia cable gland: [https://www.amazon.com/uxcell-Waterproof-Adjustable-Locknut-3mm-6-5mm/dp/B01MSZW5HQ](https://www.amazon.com/uxcell-Waterproof-Adjustable-Locknut-3mm-6-5mm/dp/B01MSZW5HQ)
• 1x M12 Breather Vent: [https://www.amazon.com/2-Pack-IP68-Industrial-Breather-Vent/dp/B0F4NM8NT5](https://www.amazon.com/2-Pack-IP68-Industrial-Breather-Vent/dp/B0F4NM8NT5)