A power management device is a power management device that controls a temperature inside a housing in a power storage system that includes a power storage device including a storage battery and the housing for housing the power storage device. The power management device includes an acquisition unit that acquires status information indicating a status of the power storage system, a calculation unit that calculates a target temperature in the housing based on an allowable capacity deterioration rate of the storage battery, and an air volume control unit that controls an air volume of a fan provided in the housing based on the status information and the target temperature.

A dual-battery charging and discharging method is described to be used for a dual-screen terminal. The method includes: obtaining a state identifier of the first display screen and a state identifier of the second display screen; determining whether the dual-screen terminal is in a charging state; in response to determining that the dual-screen terminal is in a charging state, controlling the first battery and the second battery to be charged according to the state identifier of the first display screen and the state identifier of the second display screen; and in response to determining that the dual-screen terminal is not in a charging state, controlling whether the first battery and the second battery supply power to the dual-screen terminal according to the state identifier of the first display screen and the state identifier of the second display screen.

A controller for a hybrid vehicle performs charging control when a shift range of the hybrid vehicle is a first range, and does not perform the charging control when the shift range of the hybrid vehicle is a second range, the charging control being control of charging a power storage device with electric power generated by a generator driven by an engine. The controller records diagnosis information when an SOC of the power storage device is equal to or lower than a first threshold value and the shift range of the hybrid vehicle is the first range, and does not record the diagnosis information when the SOC of the power storage device is equal to or lower than the first threshold value and the shift range of the hybrid vehicle is the second range.

An electronic device includes a connection unit and a control unit. The control unit enables a power supply path for supplying power from a first battery connected to an external device to the electronic device and enables a power supply path for supplying power from a second battery connected to the external device to a predetermined functional unit of the external device, in a case where the first battery or the second battery connected to the external device is not charged. The control unit disables a power supply path for supplying power from the second battery connected to the external device to the predetermined functional unit and enables a power supply path for supplying power from the electronic device to the first battery or the second battery, in a case where the first battery or the second battery connected to the external device is charged.

A parallel charging-discharging management system of multiple batteries comprises a main control module, a charging dual-MOS control module, a discharging dual-MOS control module, a communication module, a voltage sampling module, a current sampling module, a temperature sampling module, an electric quantity display module and batteries; the main control module is connected with a charging dual-MOS control module, a discharging dual-MOS control module, a communication module, a voltage sampling module, a current sampling module, a temperature sampling module and an electric quantity display module; the charging dual-MOS control module is connected with a power supply, batteries and a main control module, the discharging dual-MOS control module is connected with the batteries; the main control module and the load, the current sampling module is connected with the batteries and the main control module; the temperature sampling module is connected with the main control module; it prevents battery discharging and isolates parallel batteries.

The invention concerns a charger for aeronautical maintenance equipment, the charger comprising at least one so-called “high-frequency” input electrical connector comprising a plurality of power supply pins capable of receiving a three-phase AC voltage delivered by an external power supply source at a frequency of 400 Hz, and two detection pins, a so-called “high-frequency” charging module, connected to the at least one high-frequency input electrical connector, intended to be connected to a power storage module of the aeronautical maintenance equipment, and capable of converting the AC voltage received at the plurality of power supply pins of the high-frequency input electrical connector into a DC voltage for charging the storage module, and a control module capable of generating a detection voltage between the detection pins of the high-frequency input electrical connector allowing the external power supply source, when it detects the detection voltage, to authorize the supply of the AC voltage to the plurality of power supply pins of the high-frequency input electrical connector.

In a method for operating an electric vehicle and an electric vehicle, including an electric traction drive device for driving vehicle, a control device for controlling the driving, a first energy storage device, for supplying the control device using a first DC voltage, a second energy storage device, for supplying the traction drive device using a second DC voltage, and an energy supply unit for providing an output DC voltage, the first energy storage device is connected to the second energy storage device via a converter device, the first energy storage device is connected to the energy supply unit, the converter device converts the first DC voltage into the second DC voltage, and a power flow from the second energy storage device to the first energy storage device is prevented.

Provided is a storage for used battery units capable of economically storing a plurality of used battery units of various manufacturers while suppressing the deterioration of the used battery units during storage. The storage for used battery units includes: a selection unit that selects a discharge target battery unit and a charge target battery unit from among the plurality of used battery units on the basis of the current values and the voltage values of the plurality of used battery units in storage and the predetermined SOC range of each of the plurality of used battery units; and a charge/discharge control unit which causes a discharge target battery unit to be discharged and charges the discharged power into a charge target battery unit such that the SOCs of the discharge target battery unit and the charge target battery unit reach a predetermined SOC range.

Disclosed is an apparatus and method for updating a current pattern for rapid charging, and a computer program stored in a storage medium performing the method, the apparatus includes a resistance calculation unit for calculating an internal resistance of a battery module, a storage unit for storing a current pattern for rapid charging of the battery module, and a calculation unit for updating the current pattern according to a state of the internal resistance of the battery module, and the calculation unit calculates a resistance increase rate based on the calculated internal resistance, calculates an adjustment coefficient based on the calculated resistance increase rate, and updates the current pattern using the calculated adjustment coefficient and the current pattern so that when performing rapid charging, an impact on the battery module life is minimized.

An intelligent energy system includes an energy-consuming appliance, a battery module coupled to the appliance, and a bidirectional converter coupled to the appliance and the battery module by a power bus. The battery module is configured to provide power to the appliance. The bidirectional converter converts between alternating current (AC) and direct current (DC) and interfaces with a power infrastructure external to the appliance. The system further includes a control unit communicatively coupled to the battery module, the bidirectional converter, and the appliance. The control unit is configured to determine a charge and discharge schedule for the battery module. The battery module coupled with the bidirectional converter provides uninterrupted power to the appliance, abstracts the power demands of the appliance from local power infrastructure, and allows for greater appliance peak power draw than would otherwise be practical or possible.