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Everything points to one pack’s charge path disabled by its BMS (temp/ sensor/ protection), not a controller or wiring problem.
Settings
Notes
- Notice that the switch setting is ON. Could there be a thermal switch in play here?
- Discharge Overcurrent set to 10s at 220A. Could lower to 5s.
| Parameter | Original | New Value |
|---|---|---|
| Total Cycle Capacity | 224000 | 280000 |
| Cell Minimal Voltage | 2800 | 2500 |
Teardown Process
Picture showing thermal switch and low temp sensor in newer version:
Capacity Test
Discharged at 10A. Pulled 293 Ah over 29 hours.
References
| Reference | URL |
|---|---|
Name Brand Batteries Worth The Extra $$$? $479 300Ah Vatrer VS $420 280Ah Ecoworthy!
| https://www.youtube.com/watch?v=MDjB7NAxGZM |
| $423 Ecoworthy 280Ah VS $529 Wattcycle 280Ah and Over Current Discussion! | https://www.youtube.com/watch?v=pZm4fa_GjCM |
| 12V 280Ah LiFePO4 Lithium Battery Disassembly | https://www.youtube.com/watch?v=ocCBOAJBX6c |
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