150AH BOM

Enclosure (6.22 x 3.54 x 2.52)
- https://www.amazon.com/dp/B09N419581?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_8&th=1
- $9
Solar panel (140 x 90)
- https://store.rokland.com/products/rakwireless-solar-panel-with-jst-1-5-connector-large-5-5-x-3-5-inch-sku-920433?_pos=1&_sid=d363e0672&_ss=r
- $9-13
M3 Grid Internal Frame
- 3D Print Models for internal and external accessories
- M2.5 or M3 screws to hold down items
- Small, long zip ties for holding down battery pack
Antenna bulkhead
Backer
- 3D Print Models for internal and external accessories
- M6 or 1/4” SAE bolt/nut x 4 (12-16mm length)
- M3 or M4 bolt/nut/washer x 4 (6mm length) to attach magnets to backer
Magnets
- https://www.amazon.com/dp/B000WMQFPU?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_3&th=1
- 36mm / 1.425” x 4
- $0.85/ea @ 100 case on Amazon, $3/ea at most hardware stores
- $5-12
Node hardware
- Seeed Xaio nRF52
  - https://www.seeedstudio.com/XIAO-nRF52840-Wio-SX1262-Kit-for-Meshtastic-p-6400.html
  - Requires external solar charger and cabling adjustments to fit solar panel and node.
  - Requires some small soldering
  - $14
- RAK 4631 Mini starter kit
  - https://store.rokland.com/collections/rakwireless-products/products/rakwireless-mini-meshtastic-starter-kit-us915-rak19003-4631-sku-115093
  - Interfaces directly with solar panel, solar controller built-in.
  - Turn-key solution – no soldering or extra work to connect things… EXCEPT….
  - Typically needs Voltaic Enclosures battery protection circuit – $5/ea with cables
    - https://www.etsy.com/listing/1421193059/li-ion-battery-protection-modules-pcm?ref=shop_home_feat_2&frs=1&logging_key=851797922fbbed7cc86974415ac385ac75b9669b%3A1421193059&variation0=5268572289
  - $32-37
Solar Charger (if using Xaio node instead of Wisblock 4631)
- https://www.aliexpress.us/item/3256808989667615.html?spm=a2g0o.order_list.order_list_main.5.47061802axKnln&gatewayAdapt=glo2usa
- CN3791 6v
- May need to switch polarity on JST cables and/or solder bare wire to solar input leads
- MPPT charges faster than 4631’s built-in controller
- $4-10
Battery
- 21700 x 3 (at least)
- https://imrbatteries.com/products/samsung-50e-21700-5000mah-9-8a-battery
- $12-18
Tools & Supplies needed
- Epoxy (preferably 1min or 5min)
- Stepper drill bit capable of 5/8” holes
- Small punch, pick, or other object around 1/8-1/16” diameter (for help in fastening mounting nut to inside of magnet)