A battery system for allowing discharge of batteries in parallel and charging in series, while eliminating or reducing the risks and damage associated with short circuits, includes first and second batteries, parallel contactors electrically connecting the batteries in parallel to a high voltage bus when they are closed, a mid-contactor electrically connecting the batteries in series when the mid-contactor is closed, and a logic circuit for preventing closure of the mid-contactor when any of the parallel contactors is closed.

A power supply system is applied to the electronic device, where the electronic device includes at least two cell groups, an external interface, and a load; the power supply system includes a toggle switch circuit and a buck switch circuit; two poles of the cell group are respectively coupled to an input end of the toggle switch circuit; a first output end of the toggle switch circuit is coupled to an input end of the buck switch circuit, a second output end of the toggle switch circuit is coupled to an output end of the buck switch circuit, and the input end of the buck switch circuit is coupled to an external interface; and the output end of the buck switch circuit is further coupled to the load, and the external interface is configured to connect a charger.

A well system includes an electrical submersible pumping (ESP) assembly, a variable speed drive, and a ride through system. The ESP assembly includes a pump for lifting liquid from inside the well and an electric motor for powering the pump. The variable speed drive is outside the well and controls delivery of electricity from a power source to the motor. The ride through system provides backup electricity if there is an interruption of electricity from the power source. The ride through system includes a bank of power modules having stored electrical power. The modules are connected in series and have a combined electrical potential adequate for powering the motor. By selectively disconnecting adjacent modules from one another, the electrical potential from the bank of power modules is reduced to a magnitude that is not hazardous for personnel.

At least one aspect of the present disclosure is directed to systems and methods for application specific battery container configurations. A controller can receive, from the microgrid, an indication of demand for power to complete operations within a worksite. The microgrid supplied with power from one or more of a plurality of energy containers in a first configuration. The controller can determine to identify a second configuration for the plurality of energy containers, based on the first configuration as compared to a one or more criteria. The controller can identify the second configuration of the plurality of energy containers, which satisfies the one or more criteria. The controller can modify a configuration of the plurality of energy containers to complete the operations within the worksite, from the first configuration to the second configuration.

The present disclosure provides a charging and discharging method for series-parallel batteries applied to a series-parallel battery system including series-parallel batteries and a mainboard, the series-parallel batteries are connected to the mainboard and include at least two batteries that are connected to each other, and the method includes: determining and adjusting a connection mode of each battery of the series-parallel batteries according to a charging or discharging demand type; and charging or discharging the series-parallel batteries according to the connection mode of each battery of the series-parallel batteries. The present disclosure further provides a series-parallel battery system.

A charger, a data cable, and a charging device, and pertains to the field of communications technologies are provided. The charger includes a type-A female connector and a first processing module. The first processing module includes a PD charging processing unit, a non-PD charging processing unit, a data cable matching unit, and a first switching unit. The type-A female connector includes a first CC pin and a first communication pin. In a case that the data cable matching unit determines that the charger matches a connected data cable based on a matching signal transmitted through the first CC pin, the first switching unit is connected to the first CC pin and the PD charging processing unit. In a case that the charger does not match the connected data cable, the first switching unit is connected to the first CC pin and the data cable matching unit.

A configuration instruction associated with configuring a plurality of batteries which supply power to a plurality of motors in a vehicle is received. The batteries are configuring as specified by the configuration instruction, where the batteries are able to be configured in a plurality of configurations, including: a first configuration where at least some of the batteries are electrically connected together in parallel and a second configuration where at least some of the batteries are electrically connected together in series.

In a power supply system, a rechargeable battery module including a rechargeable battery and a conversion circuit is connectable to a power supply bus. A positive electrode and a negative electrode of the rechargeable battery are individually connected to a primary-side terminal pair of the conversion circuit, and the rechargeable battery is serially connected to a secondary-side terminal pair of the conversion circuit. The power supply system includes a bus voltage setting unit that sets a bus voltage requirement value which is a voltage required for the power supply bus and a control unit that controls an output voltage of the conversion circuit such that an output voltage of the rechargeable battery module becomes the bus voltage requirement value. The bus voltage setting unit sets the bus voltage requirement value such that an output voltage of the conversion circuit becomes not more than a rated voltage of the conversion circuit.

A charger integrated circuit for charging a battery device including a first battery and a second battery includes; a first charger configured to generate a first charging current from an input voltage when the input voltage is received from an input voltage terminal, and a battery switch configured to provide the first charging current to the battery device, the battery switch comprising a plurality of transistors for connecting the first battery and the second battery in series or in parallel based on the input voltage, a first both-end voltage of the first battery and a second both-end voltage of the second battery.

A protection circuit for series-connected batteries is provided, including: a plurality of battery modules connected in series between an anode and a cathode of a battery pack, wherein each of the plurality of battery modules includes a single battery, a protection switch, and a single-battery protection module, wherein each single battery is connected in series with the corresponding protection switch, wherein each single-battery protection module is configured to generate an off signal and protect the corresponding battery module in response to the off signal; an off-signal level-shifting module, which transmits an off signal of one of the plurality of battery modules to the other battery modules; a transient-voltage suppression module, connected between the anode and cathode of the battery pack, for voltage deburring and decreasing a change rate of a total voltage across the anode and cathode of the battery pack.