A battery detection system includes a battery assembly and an electronic device. The battery assembly includes a first connector and a detection module connected to the first connector. The electronic device includes a second connector and a control module connected to the second connector. When the first connector is connected to the second connector, the detection module is configured to output first identification information to the electronic device through the first connector. When the second connector receives the first identification information, the control module confirms that the battery assembly is in a connected state. After the first connector is disconnected from the second connector, the detection module generates and outputs second identification information. When information received by the second connector changes from the first identification information to the second identification information, the control module confirms that the battery assembly is disconnected.

An airport ground power unit for supplying electric current to an aircraft parked on the ground, a method of operating the ground power unit, a system for supplying electric current to an aircraft parked on the ground, a method of operating such system, and a Y-adaptor.

A method comprises providing power from a battery to an external device using a first circuit; and receiving power from a first power source to provide power to the battery using a second circuit while providing power to the external device.

A battery pack includes a housing of a first material, a cell assembly, and a cell support of a second material. The cell assembly is disposed in the housing and includes a plurality of cell units. The cell unit includes a positive electrode of the cell unit and a negative electrode of the cell unit. The cell support is configured to support at least the cell assembly. The cell support is at least disposed at two ends of the cell assembly and at least part of the cell support encapsulates the positive electrode of the cell unit and the negative electrode of the cell unit. The first material is different from the second material.

The purpose of the invention is to provide a method for charging a robot and apparatus thereof. The invention according to the environment map and robot self-positioning information which is the position and orientation of the robot in the environment map, moves the robot to a position near a potential or registered charging pile; uses acquisition apparatuses such as laser to carry out line extraction of the structural data of the identification when the robot moves to short-range pile-searching connecting area, and combines with the preset structural data of the identification template, to carry out the recognition of the charging pile, after the collected structural data of the identification and the structural data of the identification template satisfy the preset matching degree, then the charging pile can be connected to the robot for charging.

A charging load detection circuit includes a charging circuit, a frequency generation unit, and a control unit. The control unit controls the frequency generation unit to generate a pulse voltage with a fixed first frequency and a fixed first amplitude, and the frequency generation unit provides the pulse voltage to an output terminal of the charging circuit. The control unit detects whether a load is coupled to the output terminal by detecting whether the first frequency and the first amplitude are varied, and controls connecting or disconnecting a charging path of the charging circuit according to whether the load is coupled to the output terminal.

Systems described herein include a battery pack including one or more battery cells and a first resistive element connected to a positive electrode of a first battery cell. The systems also include an external device capable of receiving the battery pack. The external device includes a second resistive element, a switch, and a controller. The second resistive element is configured to be in series with the first resistive element upon the battery pack being received within the external device. The switch is positioned in series with the second resistive element and a common potential is coupled to both the battery pack and the external device. The controller is configured to activate the switch, measure a voltage between the first resistive element and the second resistive element in response to the switch being activated, and determine an identification of the battery pack based on the measured voltage.

Examples of the present disclosure describe systems and methods for automated battery replacement. In example aspects, a notification is transmitted to a central hub from an IoT device, alerting the central hub of battery status information. Based on the battery status information, a robot may be deployed from the hub to replace the battery or batteries on the IoT device. The robot may be land-based, air-based, or sea-based, among other configurations and combinations. The robot may engage the IoT device by connecting an external power source, which triggers an authentication procedure to verify the authenticity of the IoT device and the robot. Upon successful authentication, the main battery compartment hatch may be opened. In some example aspects, the main battery compartment hatch is controlled using magnets (e.g. electromagnets). A successful authentication process may result in a change of magnetic force, which may cause the battery compartment hatch to open. Upon opening of the battery compartment hatch, the robot may remove the old battery and insert a new battery. The IoT device may run at least one test on the new battery to ensure proper functionality. Upon verifying proper functionality, the IoT device and robot may disengage, and the IoT device may resume normal operations with the newly installed battery.

Embodiments of the disclosure relate to the field of charging, and provided are a charging method, a terminal and a storage medium. The charging method includes: obtaining an equivalent impedance between a charger and a charging chip of a terminal and a battery impedance of a battery in the terminal; obtaining a charging power according to the battery impedance, the equivalent impedance and a target power, where the target power includes a maximum power supported by the battery or a maximum power supported by the charger; and controlling the charger to charge the battery according to the charging power.

A battery system includes a battery pack including a plurality of cells, and an ECU. The ECU calculates a current distribution in each cell using a ladder circuit network model, the ladder circuit network model being obtained by geometrically modeling an interior of the cell using a plurality of resistance elements and a plurality of power storage elements. The ECU calculates the current distribution in the cell by applying, to the ladder circuit network model, a resistance distribution in the cell calculated based on a salt concentration distribution in the cell.