The present disclosure provides systems and methods for managing a temperature of a battery energy storage system (“BESS”). A method may comprise identifying operating temperature limitations of the BESS; obtaining a forecast horizon comprising a forecast of external environmental conditions for a time period; identifying a charging/discharging schedule of the BESS; simulating operation of the BESS for the time period for each of a plurality of sequences of thermal management modes according to the charging/discharging schedule and the forecast horizon, the simulating generating an energy consumption and an operating temperature forecast of for each of the plurality of sequences of thermal management modes; selecting a sequence of thermal management modes of the plurality of sequences; and operating the equipment according to the selected sequence of thermal management modes.

This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for wireless power transmission. A wireless power transmission apparatus may transmit multiple wireless power signals to a wireless power reception apparatus configured to combine the power from the multiple wireless power signals. The wireless power reception apparatus may provide a combined wireless power signal to a load such as a battery charger or electronic device. In some implementations, each set of primary coil and secondary coil may utilize low power wireless power signals (such as 15 Watts or less) in accordance with a wireless charging standard. By combining power from multiple low power wireless power signals, the wireless power reception apparatus may support higher power requirements of an electronic device. Multiple communication channels may be established between the wireless power transmission apparatus and the wireless power reception apparatus.

A protection circuit 100 of a power storage device 20 equipped with external terminals 58A, 58B, the protection circuit 100 being equipped with a return circuit 110 connected in parallel to a load 12 connected between the external terminals, and also equipped with a switching circuit 120, wherein: the return circuit 110 is equipped with a return element 111 which causes an induced current produced when the current to the load 12 is blocked to return to the load 12, and a current-blocking part 115 which is connected in series to the return element 111; and the switching circuit 120 switches the current-blocking part 115 from conducting to blocking after a delay of a prescribed interval from when a reverse voltage is applied to the external terminals 58A, 58B.

A battery charger includes a housing having support structure for simultaneously supporting at least two batteries of different types for charging including a first battery of a first type and a second batter of a second type. The battery charger further includes charger electronics supported by the housing and operable to output charging current to charge the first battery and charging current to charge the second battery. A fan is operable to cause air flow through the housing. A fan speed of the fan is adjustable based on a temperature of the battery charger (i) while at least one of the at least two batteries is coupled to the battery charger for charging and (ii) while no batteries are coupled to the battery charger for charging.

A charging circuit includes: an interface; a plurality of charging management components connected to the interface in parallel; and a plurality of battery packs, wherein each of the plurality of battery packs includes a battery or a plurality of batteries connected in series with each other, the plurality of battery packs are connected in series with the plurality of charging management components, respectively, and the plurality of battery packs are connected in parallel; wherein the plurality of charging management components are electrically connected with each other to adjust, through signal interaction between the plurality of charging management components, a charging current that is input to each of the battery packs, such that a time period of a maximum charging current for each battery pack is different from a time period of a maximum charging current for another battery pack.

Methods, systems, devices and apparatuses for a charging apparatus for a vehicle. The charging apparatus includes a first sensor configured to measure or detect a temperature of the electronic device. The charging apparatus includes at least one of a blower, a bypass valve or a vent configured to adjust the temperature of the electronic device or a surface of a charging pad. The charging apparatus includes a processor coupled to the first sensor and the at least one of the blower, the bypass valve or the vent. The processor is configured to determine that the temperature of the electronic device exceeds a first threshold temperature. The processor is configured to control the at least one of the blower, the bypass valve or the vent to increase or decrease the temperature of the electronic device or the surface of the charging pad.

The battery pack of an EV is partitioned into multiple removeable and replaceable batteries to mitigate challenges associated with the power charging of battery in an EV. A set of control switches are linked in a control chain to control an orderly discharge of energy from the batteries disposed in the battery pack.

Embodiments of the present invention relates to a charging device (and a charging method), the charging device for charging a battery pack, the battery pack being detachably mounted on a power tool to provide power to the power tool, wherein the charging device comprises: a parameter detecting unit configured to detect a parameter related to a charging current for the battery pack, the parameter comprising a temperature of the battery pack; and a control unit configured to adjust the charging current for the battery pack according to output of the parameter detecting unit to prevent the temperature of the battery pack from reaching a first preset temperature, wherein when the temperature of the battery pack reaches the first preset temperature, the battery pack enters an over-temperature protection state, thereby preventing a life of the battery pack from being affected, By adjusting the charging current, the present invention can not only ensure that the battery pack does not enter over-temperature protection, but also ensure that the charging current of the battery pack is not too small, so that the battery pack has the highest charging efficiency.

A terminal device, a method for monitoring battery safety of a terminal device, and a system for monitoring battery safety of a terminal device are provided. The method for monitoring battery safety includes the following. Acquire status information of a battery of the terminal device. Determine whether the terminal device meets a preset safety hazard condition according to the status information. Upon determining that the terminal device meets the preset safety hazard condition, control the terminal device to be in a power-off state or disconnect a power supply circuit.

The present invention relates to an equalization circuit, a charging device, and an energy storage device connected between a battery pack and a charger. The battery pack comprises a plurality of cells connected in series. The equalization circuit comprises: a detection module used for detecting a voltage, temperature, and/or current of each cell; an auxiliary charging module used for providing a second charging current to the battery pack, wherein the second charging current is less than a first charging current provided by the charger to the battery pack; and a control module used for controlling the detection module and the auxiliary charging module.