The battery in a vehicle was deeply discharged, but the Battery Sitter did not recharge it. What should I do?

If the battery is deeply discharged, the battery must be removed from the vehicle, or, be disconnected from the vehicle circuitry.

The Battery Sitter’s high voltage desulfation mode can only engage if no vehicle circuitry or connected devices are detected by the Battery Sitter’s circuit.

Purchase your Battery Sitter Battery Charger (2.5Ah-32 Ah).

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