Abstract: An unmanned aerial vehicle (UAV) charging control method includes detecting whether a battery of a UAV is electrically connected to an external power supply, disconnecting a load power supply circuit in response to detecting that the battery is electrically connected to the external power supply, and controlling the battery to be charged by the external power supply. The load power supply circuit is configured for the battery to supply power to a load of the UAV.

Abstract: A charging control circuit includes a charging unit, a plurality of power output terminals configured to connect with a plurality of rechargeable batteries, respectively, a plurality of switch units each connected between the charging unit and one of the plurality of power output terminals, and a control unit electrically connected with the switch units. The control unit is configured to switch to a first charging mode or a second charging mode, and output, to the switch units, a switch signal corresponding to the first charging mode or the second charging mode. The switch signal causes the switch units to switch on or off electrical connections between the charging unit and the plurality of power output terminals.

Abstract: A battery includes a battery cell and a battery management system including a first interface configured to charge and discharge the cell, a second interface configured to charge the cell, and a controller communicatively coupled to the first and second interfaces. One end of the first interface is configured to be coupled to an external power supply or a UAV, and another end of the first interface is coupled to the cell. One end of the second interface is configured to be coupled to the external power supply, and another end of the second interface is coupled to the cell. The controller is configured to, when the first and second interfaces are electrically coupled to the UAV and the external power supply, respectively, control a circuit between the first interface and the cell and a circuit between the second interface and the cell to be closed.

Abstract: A battery includes a housing, an electrical energy storage unit mounted inside the housing, and a battery control system electrically coupled to the electrical energy storage unit to control charge and discharge of the electrical energy storage unit. The battery control system includes one or more processors configured to obtain one or more electrical parameters of the battery in a storage state, determine whether the battery is damaged or abnormal according to the one or more electrical parameters of the battery, and automatically discharge the battery to a safe state in response to determining that the battery is damaged or abnormal.

Abstract: A battery includes a first cell unit, a first control circuit electrically connected with the first cell unit, a second cell unit connected with the first cell unit in parallel, and a second control circuit electrically connected with the second cell unit. The first control circuit is configured to disconnect an electrical connection between the first cell unit and a power output terminal of the first control circuit in response to a failure of the first cell unit. The second control circuit is configured to disconnect an electrical connection between the second cell unit and a power output terminal of the second control circuit in response to a failure of the second cell unit.

Abstract: Systems, methods, and devices are provided herein for improving the power performance of vehicle. A hybrid power system may comprise a power controller adapted to be in communication with a first power source, a second power source, and a load. The power controller may be configured to detect whether a current drawn by the load exceeds a predetermined threshold, control discharging of the first power source without permitting discharging of the second power source to power the load when the current drawn by the load is less than the predetermined threshold current, and control discharging of the first power source and the second power source to power the load when the current drawn by the load is greater than the predetermined threshold current.

Abstract: A protection plate includes a circuit board including a top surface and a bottom surface opposite to the top surface, a control circuit arranged at the top surface of the circuit board and configured to control a battery core, and a solder pad arranged at the bottom surface of the circuit board and soldered with an electrode tab of the battery core.

Abstract: An unmanned aerial vehicle (UAV) includes a central part, a frame assembly, and a propulsion assembly mounted to the frame assembly. The UAV also includes a servo mounted to the central part. The servo includes a driving apparatus, a control apparatus operably coupled with the driving apparatus, and a sensor configured to obtain operating parameters of the driving apparatus. The operating parameters include operating positions of the driving apparatus. The control apparatus is configured to control the driving apparatus to rotate to a predetermined position and stay at the predetermined position based on the operating positions of the driving apparatus obtained by the sensor.

Abstract: A method for managing a battery includes exchanging battery data between the battery and an onboard battery management system (BMS) of a mobile platform and between the battery and a charger BMS of a battery charger, and managing the battery based on the battery data.

Abstract: A battery management system includes a detection circuit configured to detect an electrical parameter of a metal battery and a control circuit configured to determine a safety performance of a battery cell of the metal battery according to the electrical parameter.

Abstract: A method for controlling a battery includes obtaining a present status parameter of the battery, and determining a discharge protection parameter according to the present status parameter for using in a discharge protection operation on the battery.

Abstract: A battery for supplying current to a device includes one or more battery cores and a battery management system (BMS) electrically connected to the one or more battery cores. The BMS is configured to receive a controlling signal from a control unit of the device and control the one or more battery cores to supply current to the device based on the controlling signal.

Abstract: A method for detecting an operational status of a battery including a plurality of cells includes obtaining static voltages and dynamic voltages of the cells and determining the operational status of the battery based on the static voltages and dynamic voltages.

Abstract: A battery includes a first cell unit, a first control circuit electrically connected with the first cell unit, a second cell unit connected with the first cell unit in parallel, and a second control circuit electrically connected with the second cell unit. The first control circuit is configured to disconnect an electrical connection between the first cell unit and a power output terminal of the first control circuit in response to a failure of the first cell unit. The second control circuit is configured to disconnect an electrical connection between the second cell unit and a power output terminal of the second control circuit in response to a failure of the second cell unit.

Abstract: A control circuit for controlling a battery core includes a power input terminal electrically connected to the battery core, a ferromagnetic random access memory having a dynamic mode and a non-volatile mode, and a control unit electrically connected with the ferromagnetic random access memory and the power input terminal. The control unit is configured to acquire state information of the battery core and store the state information to the ferromagnetic random access memory, and switch on or off an electrical connection between the power input terminal and the battery core to switch the ferromagnetic random access memory to the dynamic mode or the non-volatile mode.

Abstract: A charging control circuit includes a charging unit, a plurality of power output terminals configured to connect with a plurality of rechargeable batteries, respectively, a plurality of switch units each connected between the charging unit and one of the plurality of power output terminals, and a control unit electrically connected with the switch units. The control unit is configured to switch to a first charging mode or a second charging mode, and output, to the switch units, a switch signal corresponding to the first charging mode or the second charging mode. The switch signal causes the switch units to switch on or off electrical connections between the charging unit and the plurality of power output terminals.

Abstract: Systems, methods, and devices are provided herein for improving the power performance of vehicle. A hybrid power system may comprise a power controller adapted to be in communication with a first power source, a second power source, and a load. The power controller may be configured to detect whether a current drawn by the load exceeds a predetermined threshold, control discharging of the first power source without permitting discharging of the second power source to power the load when the current drawn by the load is less than the predetermined threshold current, and control discharging of the first power source and the second power source to power the load when the current drawn by the load is greater than the predetermined threshold current.

Abstract: Methods and systems for forming and changing electrical connections between a plurality of batteries (1041˜2046, 2041˜2046, 3041˜3046, 6041, 6043˜6046, 8041, 8043, 8044, 8046) within a battery assembly (100, 200, 300, 600, 800) are provided to balance the battery properties. The batteries (1041˜2046, 2041˜2046, 3041˜3046, 6041, 6043˜6046, 8041, 8043, 8044, 8046) having similar properties may be grouped into one battery pack, and an adjustment to existence of electrical connections between the plurality of batteries (1041˜2046, 2041˜2046, 3041˜3046, 6041, 6043˜6046, 8041, 8043, 8044, 8046) may be enabled while the battery assembly (100, 200, 300, 600, 800) is powering the object.

Abstract: Systems, methods, and devices are provided herein for removing a byproduct of a fuel cell from a vehicle. The vehicle comprises a fuel cell and a venting system. The fuel cell is in communication with a fuel storage container. The fuel is configured to generate electricity and a byproduct, by reacting a first fuel from the fuel storage container with a second fuel through an electrochemical reaction. The venting system is configured to expose the byproduct to forced convection.

Abstract: A system for balancing a battery assembly and related methods for making and using same are provided. The system can obtain a status of a battery assembly with a plurality of batteries. One or more of the batteries can be selected based on the obtained status, and the selected batteries can be balanced. The system, for example, can control active balancing of the selected batteries when the battery assembly is in a static state and control selective discharging of the selected batteries when the battery assembly is in a discharging state. When the battery assembly is in a charging state, selective charging of the selected batteries can be controlled. One or more cells that comprise the individual batteries alternatively can be selected for balancing. A protective circuit can help ensure safety of the balancing. Battery balancing can be energy-efficient and time-efficient. The lifetime of the battery assembly can be extended.