A portable energy storage device capable of simultaneous multi-port discharge and power allocation method, the device including multiple charging output ports, all or part of which have different preset power distribution priorities, enabling the user to determine the priority sequence of multiple power-receiving devices according to actual needs when using the device. Furthermore, when multiple charging output ports are all connected to power-receiving devices and the sum of the required power of the power-receiving devices exceeds the maximum power that the device can provide, all ports can still operate at their respective preset minimum power. If there is remaining power, the remaining power is preferentially allocated to the charging output ports with higher priority. Furthermore, when the number of charging output ports connected to power-receiving devices changes, the device reallocates power, thereby achieving dynamic power adjustment and enabling the device to operate at its maximum output power whenever possible.

Systems, methods, and articles for a portable power case are disclosed. The portable power case is comprised of at least one battery and at least one PCB. The portable power case has at least two access ports, at least two leads, or at least one access port and at least one lead and at least one USB port. The portable power case is operable to supply power to an amplifier, a radio, a wearable battery, a mobile phone, and a tablet. The portable power case is operable to be charged using solar panels, vehicle batteries, AC adapters, non-rechargeable batteries, and generators.

The portable power case provides for modularity that allows the user to disassemble and selectively remove the batteries installed within the portable power case housing.

A portable energy storage device capable of simultaneous multi-port charging and discharging and method for allocating charging and discharging power, wherein the energy storage device includes a power allocation unit, at least two power input ports, and at least two charging output ports, wherein the power allocation unit is used for allocating power to the power input ports connected to the charging device and the charging output ports connected to the receiving device, and the maximum permissible operating power of the energy storage device in charging and discharging mode is defined as P.sub.max. By distributing the power of the power input port and the charging output port, the portable energy storage device is enabled to meet the demand for simultaneous charging and simultaneous power supply, ensuring a good user experience.

A foldable electronic device is provided. The foldable electronic device includes a first housing, a hinge module, a second housing mutually rotatably connected with the first housing through the hinge module, a main substrate disposed in an internal space of the first housing, a first battery module disposed in the internal space of the first housing and including a first battery circuit substrate, a second battery module disposed in an internal space of the second housing and including a second battery circuit substrate, a first flexible printed circuit board (FPCB) electrically connecting the main substrate and the first battery circuit substrate, a second FPCB electrically connecting the first battery circuit substrate and the second battery circuit substrate, a first switching circuit configured to control an electrical connection between the first battery module and the main substrate, a second switching circuit configured to control an electrical connection between the second battery module and the main substrate, and a control circuit disposed on the first battery circuit substrate, wherein the control circuit is configured to control the first switching circuit or the second switching circuit based on a difference between a first voltage of the first battery module and a second voltage of the second battery module, to cut off power to the first battery module or the second battery module.

A battery management system, method, and computer program for mitigating a battery condition, according to a multi-level mitigation system and based on the severity of the battery condition, is provided. An example battery management system may include a battery with a battery housing defining an interior battery compartment, one or more battery cells disposed within the interior battery compartment, and one or more internal sensing elements attached to the battery housing within the interior battery compartment. The battery management system may further include a controller in electrical communication with the one or more internal sensing elements. In addition, the controller of the battery management system may select between a plurality of mitigating actions based at least in part on a battery condition. The plurality of mitigating actions available to the controller may include at least a non-destructive mitigating action and a destructive mitigating action.

An example system includes a first battery; a second battery; a switch coupled to the first battery and the second battery, the switch configured to, based on a control signal, connect or disconnect at least one of the first battery from a load or the second battery from a load; and a current sensor to generate the control signal, the current sensor including a first sensor input terminal and a second sensor input terminal; and an amplifier configured to operate as an amplifier to determine an amount of current between the first sensor input terminal and the second sensor input terminal; and operate as a comparator to determine a direction of the current between the first sensor input terminal and the second sensor input terminal, the control signal corresponding to at least one of the amount of current or the direction of the current.

A battery management device includes: a detection circuit to detect state information indicating a state of a battery; and a control circuit to monitor the state of the battery based on the state information detected via the detection circuit, and control a function associated with the battery based on a result of the monitoring. The control circuit is further to open a load break switch electrically connected between the battery and a power conversion device in response to detecting that the battery is in an abnormal state during charging or discharging of the battery.

A battery protection circuit that prevents an over-discharge condition of a battery and a reverse polarity battery charger protection circuit. The battery protection circuit includes a battery input configured to receive a battery voltage, a reference voltage input configured to receive a low battery reference voltage, a comparator for comparing a first signal indicative of the battery voltage with a second signal indicative of the reference voltage and generating an output indicative of a low battery voltage, a feedback resistor coupling the output of the comparator to the reference voltage input to create hysteresis and a battery disconnect circuit to disconnect the battery voltage applied to a load. The reverse polarity battery charger protection circuit has relay and a diode to detect reverse polarity connection of the charge to the battery.

A battery control device includes: a first battery control unit configured to control an electrical connection between an external load and a first battery module, the first battery control unit including: a first switch connected between a positive terminal for the first battery module and the external load; a second switch connected between a negative terminal for the first battery module and the external load; and a first controller configured to control an open/closed state of the first and second switches. The first controller may be configured to detect a short-circuit between the external load and the first battery control unit, according to a voltage between both ends of the first switch detected with the first switch open and the second switch closed.

An electrical isolation system for a high voltage battery circuit in an electrified vehicle, the electrical isolation system mounted to a chassis of the electrified vehicle and comprising: an overcurrent protection switch that is configured to be responsive to leakage current present in the high voltage battery circuit by breaking the high voltage battery circuit and a redundant overcurrent protection circuit that is configured to be responsive to leakage current present in the high voltage battery circuit in a manner that is different from the overcurrent protection switch to break the high voltage battery circuit such that the redundant overcurrent protection circuit is more responsive in one or more fault modes of the electrified vehicle than is the overcurrent protection switch alone, wherein the system is included in a control unit of the electric vehicle