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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
Capacity Tests
Battery 1 - 112 Ah
Battery 2 - 95Ah
Appendix
BMS Protocol
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= (0x03 + 0x00) XOR 0xFFFF + 1
= 0xFFFD
Response
| StartBit | Command | Status | Length | Data | Checksum | StopBit |
|---|---|---|---|---|---|---|
| DD | 03 | 00 | 1B | 17 00 00 00 02 D0 03 E8 00 00 20 78 00 00 00 00 00 00 10 48 03 0F 02 0B 76 0B 82 | FB FF | 77 |
Checksum Calculation = (Status + Length + Data) XOR 0xFFFF + 1
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