What does it mean if the voltage of my RELiON lithium battery is ≤4-Volts?

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Lithium batteries come with Battery Management System (BMS) to protect the battery from various abusive conditions such as low voltage, high voltage, high current and high temperature. If the BMS goes into protection mode, it will disconnect the battery from the terminals and the voltage will read between 0 to 4-Volts. If this happens, simply disconnect the battery cables and reconnect and the voltage should return.

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