The disclosure provides an Internet of things device and a battery power supply circuit thereof. A voltage of a battery is compared with a predetermined over-discharge voltage to generate a comparison signal. A battery protection circuit serves as a power supply path from the battery to a load and determines whether to cut off the power supply path according to the comparison signal. The battery protection circuit cuts off the power supply path when the voltage of the battery decreases from a value greater than the predetermined over-discharge voltage to a value less than the predetermined over-discharge voltage, but does not turn on the power supply path when the voltage of the battery increases from a value less than the predetermined over-discharge voltage to a value greater than the predetermined over-discharge voltage.

The present disclosure relates to aerosol delivery devices comprising a power unit and a cartridge that is configured for engagement with the power unit. In particular, the cartridge can be configured for rotation about a longitudinal axis thereof so as to be insertable into a chamber of the power unit in a plurality of different orientations. Further, the aerosol delivery device can include processing circuitry that can be configured for detection of the cartridge orientation and execution of a control function assigned to the respective orientation.

A vehicle-mounted device for detecting battery state comprises a controller, a load unit, and a switch unit. The load unit is coupled to the battery, the switch unit is coupled between the battery and the load unit. The controller can control the switch unit to disconnect or connect the battery and the load unit at a predefined frequency. The controller can switch the load unit to generate ripple voltage on the battery, and measure the ripple voltage of each battery cell, an abnormal state of a battery can be determined according to the ripple voltage of each battery cell.

A system for the electric power supply of a vehicle, wherein the vehicle comprises multiple electricity users, comprises an energy accumulator and a DC/DC converter, wherein the energy accumulator comprises n strands each having at least one energy accumulator cell and the DC/DC converter comprises n input modules, wherein each time one strand of the energy accumulator and one input module of the DC/DC converter form a closed circuit, wherein n circuits are interconnected, and wherein each circuit is connected to the users.

A system for battery management for electric aircraft batteries includes an energy storage system configured to provide energy to the electric aircraft via a power supply connection, the energy storage system including: a battery pack, a sensor configured to detect a condition parameter of the battery pack and generate a battery datum based on the condition parameter, a pack monitoring unit (PMU) configured to receive the battery datum, and a high voltage disconnect configured to terminate the power supply connection between the battery pack and the electric aircraft; a high voltage bus electrically connected to the high voltage disconnect; a primary functional display configured to display information based on battery datum; and a first controller area network (CAN) bus and a second CAN bus communicatively connected to the PMU, the high voltage bus, and the primary functional display.

A system for emergency shutdown of an electric charger in response to a disconnection is presented. The system includes a computing device, wherein the computing device is configured to receive a sensor datum from a sensor, determine a disruption element between a charging connector and an electric vehicle as a function of the sensor datum, and initiate a disconnection protocol as a function of the disruption element.

A charger for a starting, lighting, and ignition (SLI) battery is provided. The charger includes a base unit having a pair of terminals that are adapted to engage a pair of conductive terminals coupled to a battery unit to electrically couple the base unit to the battery unit. The charger also includes charging circuitry having power conversion circuitry that is adapted to receive primary power and to convert the primary power to a battery power output compatible with a charging voltage of the battery unit.

An arrangement for powering a mobile device with a fast charge discharge power source such as a supercapacitor without reliance on resistors to protect device electronics from comparatively high supercapacitor current discharge rates. The arrangement protects device electronics by coordinating a switch with a charge controller to balance recharge of a battery electronically coupled to the supercapacitor. The arrangement and techniques utilized result in a substantially continuous trickle charging of the battery from the supercapacitor. In this way, the battery is continuously charged so long as the supercapacitor holds power and the battery remains the safe medium through which device electronics are powered.

A protection circuit 60 is provided with: switches 61, 62 positioned on a power line PL of an electricity storage element 22 and a load 12; first protection elements 63, 64, 65 connected in parallel with the switches 61, 62 and absorbing surge caused when the switches 61, 62 open and cut off discharge current; and a second protection element 66 connected in parallel with the load and flowing, back to the load, the surge caused when the switches 61, 62 open and cut off the discharge current.

A portable charger capable of jump starting a 12 V car battery includes a charger battery, a jump start circuit operatively electrically connected with the charger battery and with an ignition power outlet, and a microcontroller for coordinating safety functions to establish or interrupt the operative electrical connection of the jump start circuit with the ignition power outlet. The ignition power outlet comprises a positive power socket, a negative power socket, a positive sensing socket and a negative sensing socket. The sensing sockets are electrically isolated from the power sockets, and the microcontroller senses voltage across the sensing sockets and is configured to interrupt the operative electrical connection of the jump start circuit to the ignition power outlet until proper voltage is sensed across the sensing sockets.