Based on changes in a battery (e.g., age, temperature) of an electronic device, battery power prediction and correction logic of the electronic device may correct a power capability and/or regulate power associated with the battery. For example, the battery power prediction and correction logic may operate the battery to supply up to a maximum of a power capability with an applied correction factor based on a voltage measurement and a cutoff voltage associated with 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 integrated circuit for protecting a secondary battery may include: a power-supply terminal connectable with a positive terminal of the secondary battery; a ground terminal connectable with a negative terminal of the secondary battery; and a control circuit for controlling a discharge-stop circuit to stop discharging the secondary battery. In response to a power-supply voltage between the power-supply terminal and the ground terminal being at or above a first threshold voltage, which is higher than a second threshold voltage, the control circuit carries out a first operation. When a first condition in which the power-supply voltage is lower than the first threshold voltage lasts a first period of time, the control circuit starts the discharge-stop circuit. When a second condition in which the power-supply voltage is lower than the second threshold voltage lasts a second period of time, shorter than the first period, the control circuit starts the discharge-stop circuit.

A unique system for the implementation of a multi cell battery pack whereby the individual cells are organized in different configurations for discharge or charging operation is presented. Battery pack discharge operation utilizes a series (stacked) configuration capable of producing a high output voltage necessary for the application. In contrast, charging operation configures the individual cells into a parallel (single layer) organization offering a simple fast charge operation provided by natural current sharing of the cells. Switch over between the two configurations is achieved using switching array implemented by low-cost N-channel MOSFET devices. Usage of dual modes for battery charge/discharge operation offers a simplified implementation with the highest performance. An application is also described where the present invention is used as a compatible replacement of a standard 12V lead acid automotive battery.

A power supply unit for an aerosol generation device includes: a power supply configured to supply power to a heater configured to heat an aerosol source; a receptacle configured to receive power for charging the power supply from a plug connected to an external power supply; a charger configured to control charging of the power supply by power received by the receptacle; and a controller. The receptacle and the power supply are connected in parallel with the charger, and the charger is configured to supply power from the receptacle and the power supply to the controller via the charger.

An energy storage apparatus includes a protection circuit including a cutoff control switch connected to first and second semiconductor switches provided in series on a power line to simultaneously turn off the first and second semiconductor switches, a reuse prohibition switch provided in series with the cutoff control switch, and a latch circuit. The protection circuit is configured to turn off the first and second semiconductor switches without latching the reuse prohibition switch by the latch circuit when executing first protection, which allows restoration of operation after the first and second semiconductor switches are turned off, and to turn off the first and second semiconductor switches while latching the reuse prohibition switch by the latch circuit when executing second protection, which prohibits the restoration of the operation after the first and second semiconductor switches are turned off.

An energy storage apparatus includes a protection circuit including a cutoff control switch connected to first and second semiconductor switches provided in series on a power line to simultaneously turn off the first and second semiconductor switches, a reuse prohibition switch provided in series with the cutoff control switch, and a latch circuit. The protection circuit is configured to turn off the first and second semiconductor switches without latching the reuse prohibition switch by the latch circuit when executing first protection, which allows restoration of operation after the first and second semiconductor switches are turned off, and to turn off the first and second semiconductor switches while latching the reuse prohibition switch by the latch circuit when executing second protection, which prohibits the restoration of the operation after the first and second semiconductor switches are turned off.

A method for discharging energy storage cells of an energy storage system, the method including: a) determining a system charge, Sys_charge_As, to be discharged from the energy storage cells based on a configuration of the energy storage system; b) determining a balancing map based on predefined criteria, wherein the balancing map includes an entry for each energy storage cell, and each energy storage cell is associated with at least a balancing flag; c) determining, whether the energy storage system is ready to discharge; and d) discharging the energy storage system, when the energy storage system is determined to be ready for discharge.

A secondary battery protection circuit includes a potential-difference control circuit. The potential-difference control circuit provides, when overcharge is detected by an overcharge detection circuit, a control terminal of a charge control transistor with feedback on a potential-difference detection signal to control a potential difference between an electrode of a secondary battery and a terminal for a load and charger. The potential-difference control circuit provides, when overdischarge is detected by an overdischarge detection circuit, a control terminal of each of the charge control transistor and a discharge control transistor with feedback on the potential-difference detection signal to control the potential difference.

A secondary battery protection circuit includes a potential-difference control circuit. The potential-difference control circuit provides, when overcharge is detected by an overcharge detection circuit, a control terminal of a charge control transistor with feedback on a potential-difference detection signal to control a potential difference between an electrode of a secondary battery and a terminal for a load and charger. The potential-difference control circuit provides, when overdischarge is detected by an overdischarge detection circuit, a control terminal of each of the charge control transistor and a discharge control transistor with feedback on the potential-difference detection signal to control the potential difference.