Abstract: The present disclosure generally relates to systems and methods for managing a battery of an electric vehicle. In some embodiments, a system initiates battery discharging on a battery pack, where the battery discharging continues until the battery pack reaches a first threshold level of charge. The system then estimates a first state of charge of the battery pack based at least on a first sensor reading associated with the battery pack. The system initiates battery charging on the battery pack, where the battery charging continues until the battery pack reaches a second threshold level of charge. The system estimates a second state of charge of the battery pack based at least on a second sensor reading associated with the battery pack. The system generates a processing result that indicates a capacity of the battery pack based at least on the first state of charge and the second state of charge.

Abstract: The present disclosure generally relates to systems and methods for monitoring battery cell imbalance during battery discharging. A battery can include a plurality of battery cells. During the battery discharging process, when the battery capacity reaches the criteria, a battery discharging device retrieves energy and/or voltages of the battery and determines the change of voltages corresponding to the change of the energy for the battery. The determined results can be compared to battery discharging reference data to determine battery cell imbalance. The battery discharging device may terminate the battery discharging process by detecting the battery cell imbalance.

Abstract: The present disclosure generally relates to systems and methods for managing a battery of an electric vehicle. In some embodiments, a system initiates battery discharging on a battery pack, where the battery discharging continues until the battery pack reaches a first threshold level of charge. The system then estimates a first state of charge of the battery pack based at least on a first sensor reading associated with the battery pack. The system initiates battery charging on the battery pack, where the battery charging continues until the battery pack reaches a second threshold level of charge. The system estimates a second state of charge of the battery pack based at least on a second sensor reading associated with the battery pack. The system generates a processing result that indicates a capacity of the battery pack based at least on the first state of charge and the second state of charge.