We couldn't find a box with the ideal interior dimension of 7.5" x 12", so we went with this bigger ammo box and placed the cells on their sides.

Build Pictures

Appendix

Baud Rate: 9600 bps

Sample Command - Read Info

StartBit	Read/Write	Command	Length	Data	Checksum	StopBit
DD	A5	03	00	-	FF FD	77

Checksum Calculation

Checksum Calculation = 0x10000 - (Command + Length + Data)

= 0x1000 - (0x03+0x00)

= 0xFF FD

OR

Checksum Calculation = (Command + Length + Data) XOR FF + 1

= (0x03 + 0x00) XOR 0xFFFF + 1

= 0xFFFD

Reference	URL
Smart BMS	https://batteryhookup.com/products/12v-lifepo4-smart-bms-w-low-temp-cutoff
3.2V 100ah MODULES	https://web.archive.org/web/20210516124542/https://batteryhookup.com/products/new-battery-hookup-lifep04-32650-3-2v-5000mah-cells-1
BMS Manual	bms_series.pdf
Software	https://www.lithiumbatterypcb.com/smart-bms-software-download/
OverkillSolar BMS Files	https://github.com/FurTrader/OverkillSolarBMS
Arduino Library	https://github.com/FurTrader/OverkillSolarBMS/tree/master/Arduino
Communication Protocol	JBD Protocol English version.pdf
Communication Protocol	Protocol English Version.pdf
Build Video $420 100AH LiFePO4 Build - BatteryHookup.com Modules - Super Easy Assembly! COMPLETE DIY GUIDE!	https://www.youtube.com/watch?v=uN1h0XIpfTg&t=1401s
DIY 100AH LIFEPO4 BATTERY PARTS LIST	https://jasonoid.com/diy100ahlifepo4/

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