LiFePO4 voltage thresholds

Is it bad to completely drain a LiFePO4 battery?

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Fully draining a LiFePO4 (lithium iron phosphate) battery can significantly reduce its lifespan and performance. Unlike traditional lithium-ion batteries, LiFePO4 cells tolerate deeper discharges better, but consistently dropping below 10% state-of-charge accelerates chemical degradation. Most manufacturers recommend maintaining a 20-80% charge range for optimal longevity while allowing occasional full discharges in emergencies. Deespaek 12V 100Ah … Read more

How to Know When a LiFePO4 Battery is Fully Charged

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A LiFePO4 battery is fully charged when its voltage reaches 14.4–14.6V (for 12V systems) under no load, the charging current drops below 3–5% of its capacity, and a smart charger switches to float mode. Temperature, cell balancing, and manufacturer specifications also influence accuracy. Always use a battery management system (BMS) for reliable results. Deespaek 12V … Read more

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