Described herein is a battery system that allows a battery pack to operate in different modes at different times. Each of the different modes may provide its own set of functionality that affects how the battery pack operates and/or reacts to external input signals. A mode may change how the battery pack discharges power by, for example, altering whether terminals are enabled or disabled. A mode may change how the battery pack's hardware operates by, for example, disabling or enabling portions of the battery pack's hardware. A mode may change what battery-related services are provided by the battery pack and available to an end user by, for example, enabling or disabling the sending of battery status information from the battery pack.

Provided is a server including a communicator, and a controller electrically connected to the communicator. The controller is configured to receive, from a plurality of personal mobilities, first information related to a battery of each of the plurality of personal mobilities through the communicator, transmit, to a first personal mobility among the plurality of personal mobilities, a first control signal for causing a first conductive coil of the first personal mobility to be switched into a state for power transmission through the communicator, based on the first information, and transmit, to a second personal mobility among the plurality of personal mobilities, a second control signal for causing a second conductive coil of the second personal mobility to be switched into a state for power reception through the communicator.

A battery management device is configured to set a limited measurement range that limits a range for measuring a voltage of each of a plurality of batteries for a vehicle. The battery management device is configured to measure the voltage of each of the plurality of batteries within the limited measurement range.

Embodiments of the disclosure provide a battery management system (BMS) including: a first controller monitoring a first battery cell array having at least one battery cell and configured to measure an operating parameter of the first battery cell array; and a second controller monitoring a second battery cell array having at least one battery cell and configured to measure an operating parameter of the second battery cell array, and communicatively coupled to the first controller. The first controller is selectable between: an active mode for receiving the measured operating parameter of the second battery cell array from the second controller, and detecting a fault in the first or the second battery cell array based upon the measured operating parameters thereof, and a passive mode for measuring the operating parameter of the first battery cell array, and transmitting the measured operating parameter to the second controller.

A battery management system for integrated management of high and low voltage batteries may include: a control unit; a low voltage monitoring unit connected to the control unit, and configured to transmit a monitoring result for a low voltage battery to the control unit; and a high voltage monitoring unit including a plurality of sensing ICs connected to each other in a daisy chain manner, wherein at least one sensing IC of the plurality of sensing ICs is connected to the low voltage monitoring unit, and transmits a monitoring result for a high voltage battery to the control unit through the low voltage monitoring unit.

A power management system can smartly allocate the available power at a location to support more electric vehicles than would otherwise be possible. Power managers can intelligently allocate that power based on the real-time needs of vehicles. A smart energy distribution system can estimate each vehicle's current charge level and use such information to efficiently provide electric vehicle charging. The system can respond dynamically to vehicle charge levels, current readings, and/or electrical mains readings, allocating more current where it is needed. The charger profiles can include historic charge cycle information, which can be analyzed under a set of heuristics to predict future charging needs. A local electric vehicle charging mesh network can be provided, which transmits data packets among short-range transceivers of multiple power managers. The local electric vehicle charging mesh network can be connected to a remote server via a cellular connection. The power managers and the local electric vehicle charging mesh network can intelligently allocate power to multiple electric vehicles.

A hybrid battery system is provided for extending the shelf-life of rechargeable batteries. The hybrid battery system may contain sets of non-rechargeable and rechargeable batteries respectively. As the rechargeable batteries are discharged (e.g., from self-discharge), the hybrid battery system may utilize the non-rechargeable batteries to maintain the rechargeable batteries at a preferred state of charge. A preferred state of charge may be selected to extend the shelf-life of the rechargeable batteries. Alternatively, a signal may change the preferred state of charge to prepare the rechargeable batteries for use or for other reasons. The hybrid battery system may contain modular components, thereby allowing for easy replacement of defective or otherwise unsuitable non-rechargeable batteries, rechargeable batteries, or supporting electronics.

A method, system and device for active balance control of a battery pack are disclosed. The method includes: calculating a reference balance current ratio of a battery cell to a battery pack in each batch; calculating an actual balance current ratio of the battery cell to the battery pack at each moment in any batch; allowing the actual balance current ratio to track the reference balance current ratio of the corresponding batch in real time by executing a preset tracking algorithm; and performing balance control on the battery pack according to a tracking result. The system includes a first calculation module, a second calculation module, a tracking module, and a balance control module. The device includes a memory and a processor.

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.

A battery management apparatus includes: a first transceiver configured to receive a first infrared (IR) signal output from a neighbor battery management apparatus and process the first IR signal; a controller configured to extract information from the processed first IR signal; and a second transceiver configured to output a second IR signal based on the extracted information.