A method for predicting risk exposure can include receiving data from a sensor. The method for predicting risk exposure also can include analyzing the data via a machine learning (ML) model. The analyzing can include determining that the data represents a light exposure pattern correlated with a risk pattern. The ML model can be trained with training data indicative of the light exposure pattern and indicative of the risk pattern to identify a correlation between the light exposure pattern and the risk pattern. The method for predicting risk exposure further can include predicting a risk exposure for a user based on the analyzing the data. The method for predicting risk exposure further can include providing a notice indicating the risk exposure, as predicted. Other embodiments are disclosed herein.

A batten-charger for a battery system is provided. The battery system may be adapted to provide power to a vehicle. The battery charger may comprise; a housing; a charger connector adapted to be connected with a mating connector of the battery system; memory storing executable instructions; and a processor in communication with the memory. The processor when executing the executable instructions may: determine that identification information from the battery system is received by the processor via the charger connector. After the identification information from the battery system is received, the processor may generate first information indicating that the battery charger is connecting with the battery system.

The present disclosure provides a management system (110), a vehicle battery (1100), a power supply device, a vehicle (11000), and an over-charge protection method. The management system (110) includes a first energy storage component (1112), a battery interface (1114), a load interface (1116), and an energy storage component management circuit (1118). The first energy storage component (1112) is capable of supplying power to an electrical device (1300) and to a load. The energy storage component management circuit (1118) is configured to: disconnect the first energy storage component (1112) from the load interface (1116) when an electric charge of the first energy storage component (1112) is less than a first predetermined electric charge, and disconnect the first energy storage component (1112) from the battery interface (1114) when the electric charge of the first energy storage component (1112) is less than a second predetermined electric charge.

A charging method and system, an electronic device, and a computer storage medium are disclosed. The system includes a first device and a second device. The first device includes a boost chip and a first battery. The second device includes a charge pump chip and a second battery. The first battery is configured to output a first voltage to the boost chip. The boost chip is configured to: receive the first voltage and output a second voltage to the second device, where the second voltage is greater than the first voltage. The charge pump chip is configured to: receive the second voltage and output a third voltage to the second battery, where the second voltage is M times the third voltage, and M is a positive number greater than 1. The second battery is configured to: receive the third voltage and perform charging.

A portable backup starting device for a vehicle includes an internal power source, a switching circuit, a first voltage detecting circuit, a first electrode clip, and a second electrode clip. The first electrode clip and the second electrode clip are configured to connect to a first end and a second end of a vehicle load; the internal power source has a first electrode and a second electrode. The first electrode is coupled to the first electrode clip, and the second electrode is coupled to the switching circuit; and the switching circuit is coupled to the second electrode clip. The first voltage detecting circuit is coupled to the switching circuit, the first electrode, and the second electrode.

A charging case for an intraoral device includes a storage compartment surrounded by a peripheral wall extending between a top and a base. A charging output supported by the peripheral wall faces into the storage compartment to transfer energy to the intraoral device contactlessly by induction. Internal locating formations form a pocket for receiving and engaging a protruding sensor part of the intraoral device, holding a receiving input of the intraoral device in close proximity and alignment with the charging output when the case is closed.

A charge and discharge management device disclosed herein includes an acquisition controller configured or programmed to acquire information on a predetermined deterioration acceleration element for on-vehicle batteries from a plurality of electric vehicles connected to an electric power system, an arithmetic controller configured or programmed to arithmetically operate deterioration acceleration element values of the plurality of electric vehicles, based on a predetermined arithmetic operation method, based on the information on the deterioration acceleration element, and a determination controller configured or programmed to control charging the plurality of electric vehicles from the electric power system or discharging the electric power system from the plurality of electric vehicles, based on the deterioration acceleration element values of the plurality of electric vehicles.

A battery management system includes a sensing unit to generate a sensing signal indicating a battery voltage and a battery current of a battery, a memory unit to store a charge map recording a correlation between first to n.sup.th reference state of charge (SOC) ranges, first to n.sup.th reference currents and first to n.sup.th reference voltages for multi-stage constant-current charging, and a control unit to change to constant voltage charging using a k.sup.th reference voltage corresponding to a k.sup.th reference SOC range in response to the battery voltage having reached the k.sup.th reference voltage during constant current charging using a k.sup.th reference current corresponding to the k.sup.th reference SOC range to which an SOC of the battery belongs. The control unit updates the k.sup.th reference current of the charge map based on a time-series of the battery current in a charging period of the constant voltage charging.

A wearable walking assist and/or exercise device may detect a start of exercise of the user, select LED lamps to be blinked from the plurality of LED lamps included in the lighting module based on an exercise intensity of the wearable device, determine a blinking period of the selected LED lamps based on a walking speed of the user, and blink the selected LED lamps for the determined blinking period.

A battery management apparatus and method performs appropriate control to increase the lifespan of a battery cell by judging whether degradation of the battery cell is accelerated. Since both the voltage change pattern and the differential capacity change pattern between the plurality of peaks included in the plurality of differential profiles are considered, there is an advantage that it is possible to accurately determine whether the state of the battery cell is in a degradation accelerated state.