METHODS AND SYSTEMS FOR VEHICLE BATTERY CELL FAILURE DETECTION AND OVERCHARGE PROTECTION

Systems and methods are disclosed for monitoring the health of a vehicle battery. An example method includes determining an initial amp-hour value for a vehicle battery of a vehicle. The method also includes measuring a net integrated amp-hour value added into the vehicle battery during a first time period. The method further includes determining that the initial amp-hour value plus the net integrated amp-hour value is greater than a threshold percentage of a rated capacity of the vehicle battery. And the method still further includes responsively providing an alert to a driver.