EVE 304Ah LiFePo4 Lithium Batteries - First balancing - Ep. 3 | Part 1 (2021)
6 settembre 2021 · 32 min · 14K visualizzazioni
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LiFePO4 battery balancing is essential for maximizing capacity and preventing premature charging cutoffs by the Battery Management System (BMS).0:27 When cells are not balanced, the BMS stops the charging process as soon as the first cell reaches its maximum voltage of 3.65V, leaving other cells undercharged.14:14 To perform top balancing on 304Ah EVE cells, connect all cells in parallel to equalize their voltage levels.15:21 Because natural equalization through parallel connection is slow due to minimal voltage differences, applying a constant voltage source—such as 3.60V—accelerates the process by forcing current into the cells with the lowest state of charge.20:37
These 3.2V cells operate optimally between 10% and 90% capacity, as voltage remains relatively flat between 3.25V and 3.35V, making voltage-based state-of-charge monitoring unreliable.10:54 A dedicated battery monitor, such as a Victron unit, is necessary for accurate tracking.11:13 When storing batteries for extended periods, maintain a charge between 30% and 50% and ensure temperatures remain between 0°C and 35°C.7:52 Proper balancing ensures all cells reach full capacity simultaneously, preventing the BMS from prematurely terminating the charge cycle.14:17
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