This application discloses a method for correcting a SOH, an apparatus, a battery management system and a storage medium, where the method includes: obtaining a relationship curve between a ratio of an accumulated charge/discharge capacity variation and a corresponding voltage-parameter variation of a battery cell and a voltage parameter itself; determining a valid peak point on the relationship curve; determining a SOH calibration value corresponding to voltage parameter datum at the valid peak point; correcting a current SOH according to the SOH calibration value. The estimation accuracy of the SOH can be improved according to this application.

A method of managing a battery is disclosed. The method is capable of efficiently managing a battery by measuring a state of charge (SOC) and an energy storage amount of the battery within a short time. A battery management system and an electric vehicle charging system having the battery management system are also disclosed.

A multi-port charging system includes a controller having a power input terminal coupled to a DC power output of a converter, multiple power output terminals coupled to the power input terminal, and a communications input terminal. The system includes multiple charger ports, the respective charger ports having a charging power line coupled to a respective one of the power output terminals, and a communications line coupled to the communications input terminal. The controller is configured to control the state of the control output terminal to set a voltage of the DC power output according to a selected highest common compatible voltage of one or more sink devices coupled to one or more respective ones of the charger ports.

An aircraft power system includes a front-end power converter and a back-end power converter. The front-end power converter is configured to generate a first direct current (DC) supply voltage or a second DC supply voltage based on a voltage level of an alternating current (AC) supply voltage output from an AC voltage source. The backend power converter sub-system is configured to convert the first DC supply voltage or the second DC supply voltage into a backend supply voltage. An active power distribution system is configured to select different electrical paths between the front-end converter and the backend converter subsystem in response to detecting output of the first DC supply voltage and the second DC supply voltage.

Method for balancing states of charge of an electrical energy store with a plurality of battery cells.

System and method of controlling operation of a device having a rechargeable energy storage pack with a plurality of cells, based on propulsion loss assessment. A controller is configured to obtain a state of charge data and an open circuit voltage of the rechargeable energy storage pack. The controller is configured to obtain a state of charge disparity factor (dSOC) from a selected dataset. The state of charge disparity factor (dSOC) is defined as a difference between a minimum value of the state of charge and an average value of the state of charge of the plurality of cells. The controller is configured to control operation of the device based in part on the state of charge disparity factor (dSOC) and a plurality of parameters (P.sub.i), including raising one or more of a plurality of flags each transmitting respective information to a user.

A starter battery with a total battery voltage exceeding a supply voltage requirement of an electrical system. An alternator provides a charging voltage that corresponds with the supply voltage requirement of the electrical system. A total battery voltage equal to the sum of cell voltages exceeds the supply voltage requirement of the electrical system. A step-down voltage regulator reduces the total battery voltage to correspond with the supply voltage requirement and a boost voltage regulator increases the charging voltage from the alternator when charging the starter battery to the total battery voltage. When detecting a degraded cell, the step-down voltage regulator continues to regulate the total battery voltage to correspond with the supply voltage requirement after the cell has degraded and the boost voltage regulator is bypassed when charging the starter battery to no longer increase the charging voltage from the alternator when charging the starter battery.

In some examples, an apparatus includes a controller to monitor voltage of a battery during constant current charging of the battery, and to detect lithium plating of the battery based on a rate of change of the monitored voltage of the battery during constant current charging of the battery. In some examples, a battery module includes a plurality of battery cells connected in parallel, and a controller to determine an impedance of each of the plurality of battery cells, and to disconnect one of the plurality of battery cells from the plurality of battery cells based on a relation of the impedance of the one of the plurality of battery cells with a threshold impedance.

A surgical instrument includes a shaft, an end effector extending distally from the shaft, and a housing extending proximally from the shaft. The housing includes a motor configured to generate at least one motion to effectuate the end effector, and a power source configured to supply power to the surgical instrument, wherein the power source includes a casing, a data storage unit, and a deactivation mechanism configured to interrupt access to data stored in the data storage unit. In addition, the power source includes a battery pack and a deactivation mechanism configured to deactivate the battery pack if the casing is breached.

A vehicle includes a battery, an electric power acquirer, a relay, a pre-charge relay, a power supply unit, and a controller. The controller performs a control of electric power transmission through a power line of the vehicle. The controller executes pre-charge processing on a request for operation of the power supply unit, with the relay being in a disconnected state, and with the electric power acquirer being available for electric power acquisition. The pre-charge processing includes raising a voltage of the power line by switching the pre-charge relay. The controller causes a transition of a mode of the electric power transmission to a direct transmission mode. The direct transmission mode includes transmitting electric power acquired by the electric power acquirer to the power supply unit.