The present disclosure relates to a free voltage multi-charging device for a battery for charging batteries of various voltages and types by one charging device because a plurality of charging kits capable of charging batteries of different charging voltages and types may be coupled to one charger main body.

A power adapter, a terminal, and a method for processing an impedance anomaly in a charging loop are provided. The terminal includes a battery and a charging interface, and is configured to form a charging loop with a power adapter via the charging interface to charge the battery. The terminal further includes: a communication component, configured to receive voltage indication information from the power adapter when the power adapter charges the terminal, the voltage indication information indicating an output voltage of the power adapter; a detection component, configured to detect an input voltage of the power adapter; and an anomaly processing component, configured to determine whether an impedance of the charging loop is abnormal according to a difference between the input voltage and the output voltage, and to control the charging loop to enter into a protected state if the impedance of the charging loop is abnormal.

A battery charging and discharging device includes an enclosure defining an interior compartment, where the enclosure further includes an access opening configured to allow access to the interior compartment, a moveable cover configured to move between a closed position covering the access opening and to prevent access to the interior compartment, and an open position enabling access to the interior compartment, a battery storage compartment disposed within the interior compartment and configured to receive, retain and release a plurality of rechargeable batteries, and a releasable attachment device configured to releasably attach the enclosure to one of a movable object or a stationary fixture.

A battery charging method and an electronic device are disclosed. The electronic device can comprise: a connection unit comprising a first terminal to which a voltage is applied by an external device, and a second terminal for transmitting/receiving data; a first charging unit for charging a battery connected to the electronic device by using the voltage applied to the first terminal; and a second charging unit for charging the battery by dropping the voltage applied to the first terminal according to a preset voltage drop rate. The first charging unit can comprise: a first switch connected to the first terminal; a communication unit for transmitting information through the second terminal; and a first control unit for acquiring first information on the battery voltage, controlling the communication unit such that the first information is transmitted to a charger connected to the connection unit, and controlling the first switch such that the voltage adjusted on the basis of the first information by the charger is supplied to the second charging unit through the first terminal.

Embodiments of this application relate to the technical field of batteries, and in particular, to a state-of-charge cut-off control method, apparatus and system, and a storage medium. The method includes: obtaining, in a discharging process of a battery, a net discharge capacity of a first battery cell from being fully charged to current time; obtaining an available capacity and a state of health of the first battery cell; obtaining a current remaining dischargeable capacity of the first battery cell; and setting a state of charge SOC of the first battery cell to 0.

A remote controlled battery cell monitoring and control system that utilizes empirical and theoretical data to compare performance, sensor data, stored patterns, historical usage, use intensity indexes over time and tracking information to provide a sophisticated data collection system for batteries. This tracking is designed to better the specifications, designs, training, preventative maintenance, and replacement and recycling of batteries.

A rechargeable battery jump starting device with a dual battery diode bridge system. The dual battery diode bridge, for example, is configured to protect against a back-charge to a first 12V battery and/or a second 12V battery after a vehicle has been jump charged to prevent damage thereto.

USB charger apparatus and chargeable electronic devices are presented in which the device and charger use USB cable data lines to establish a bidirectional communications connection, and the charger provides charger capability information to a master controller of the electronic device via the communications connection. The device controller preferentially selects a fastest charging match between the charger capability information and device charging capability information, and sends configuration information through the communications connection to set the power supply level of the charger. The charger communicates power supply status information to the electronic device, and the device can reconfigure the charger power supply level accordingly.

A battery charging method and device thereof, relates to a technical field of battery charging, including steps of activating a battery to-be-charged, charging the battery to-be-charged in a low current short-charging mode having a preset time; after the preset time, detecting and obtaining a floating charge voltage value of the battery to-be-charged; if the floating charge voltage value is less than a first voltage threshold, determining that the battery to-be-charged is a nickel-hydrogen battery; if the floating charge voltage value is greater than the first voltage threshold, charging the battery to-be-charged in a constant current long-charging mode, turning off the constant current after reaching a preset voltage value, performing no-load detection on a real-time voltage of the battery to-be-charged, and obtaining a second voltage value of the battery to-be-charged when the real-time voltage drops to be unchanged.

An electrical device includes a control or regulating circuit and a plurality of electromechanical battery interfaces configured to supply the electrical device with a maximum permissible operating voltage using at least one exchangeable battery pack, which is releasably accommodated by the electromechanical battery interfaces. The electromechanical battery interfaces are configured such that exchangeable battery packs of at least two different voltage classes can be accommodated. The control or regulating circuit electrically connects several exchangeable battery packs of a lower voltage class in series and/or in parallel such that a resulting battery voltage does not exceed the maximum permissible supply voltage.