You can recalibrate BMS accuracy and rebalance the battery cells by doing the following: Let the battery fall below 10%. Leave it there for at least an hour. Over time, BMS calculations may become inaccurate due to drift or imbalances caused by shifting individual cell voltages within the battery. It's still relatively unusual to actually have a faulty battery, and the guide we set out below will. . Resetting the Battery Management System (BMS) of your Tesla is known as a Tesla battery calibration. If your battery percentage seems “jumpy” or the system is throwing a fault, it's usually the BMS doing its job to protect the chemistry. Here is how to manage the most critical aspects of. .
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