VCBATT_a555_LVBatteryCellRebalancing

The low voltage battery management system (LVBMS) reports it has detected a low voltage (LV) battery cell voltage imbalance and is attempting to rebalance the cell voltages. The vehicle will be kept awake to support the LV battery until the rebalancing attempt is complete.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

The LV battery may suddenly become unavailable and unable to support vehicle electrical systems. The LV battery may require replacement, and a separate alert should be present to indicate this condition if applicable.

Description

The low voltage battery management system (LVBMS) reports it has detected a low voltage (LV) battery cell voltage imbalance and is attempting to rebalance the cell voltages. The vehicle will be kept awake to support the LV battery until the rebalancing attempt is complete.

Cause

The LVBMS detects that all LV battery cell voltages are not within 100mV of each other.

Clear condition

The LVBMS determines the LV battery has had enough time supported by the power conversion system (PCS) to rebalance the cell voltages.

Models

Model S 2021+, Model X 2021+

Visibility

service

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