Tesla HV Battery Cell Imbalance Diagnosis

Cell imbalance occurs when individual battery cells within the high voltage pack exhibit significant voltage disparities. Confirm this by using the Tesla diagnostic interface to view the 'Cell Voltage Variation' or 'Delta' metric. An imbalance is verified if the voltage difference between the highest and lowest cell groups exceeds the manufacturer's specified threshold (typically >30mV) while the pack is at a low SOC state.


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Diagnostic Document

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Automotive - Electric Vehicles

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ID: 17iHOl4mosDmF4UKuIAG
Created: 8/26/2026, 3:21:13 AM
Version: 1.0
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