Provided are a frequency modulation method, device and system based on a new energy support machine and an energy storage device, and a new energy field station. The method includes: acquiring a system frequency offset value; determining a frequency modulation scheme for the new energy support machine and/or the energy storage device according to the system frequency offset value; generating a frequency modulation instruction for the new energy support machine and/or the energy storage device according to the frequency modulation scheme, so that the new energy support machine and/or the energy storage device execute a corresponding frequency modulation instruction and modulate the system frequency. The method has high regularity, flexibility in rule adjustment and good real-time performance. When the system frequency of a power grid fluctuates, a new energy support machine with higher durability is selected to support the power grid. The electrochemical energy storage device with poorer durability is selected to support the power grid only when the frequency fluctuation of the system is excessive, thereby reducing the number of times the energy storage device is used, realizing the safe operation of the energy storage device, and improving the use safety of the energy storage device.

An emergency lighting fixture is provided. The emergency lighting fixture includes a backup power supply. The backup power supply includes one or more batteries. The emergency lighting fixture includes one or more light sources. The emergency lighting fixture includes a transceiver. The emergency lighting fixture includes a controller configured to determine a status of the backup power supply. The controller is further configured to transmit a beacon signal via the transceiver. The beacon signal can include the status of the backup power supply.

The present invention generally relates to automatic charging systems and methods for mobile devices that require more power than is possible with inductive chargers. A mobile device charging cabinet is provided, wherein each mobile device inserted for charging contains a charging receiver that is attached to a cover, such as a laptop cover. The cabinet further comprises a multiplicity of base stations, each of which provides a grid of conductive alternating polarity connection plates, spaced to accept two prongs similarly spaced on the bottom of the charging receiver. Power flows from the base station automatically through the charging receiver to the mobile device when it is placed on a surface containing a base station within the cabinet. Computer software is included to control and monitor all functionality of the system, such as optimal power flow and battery charging; and further provides key asset management tools to allow a user to know, for example, the number and exact location of all devices using the invention and under his or her control.

A power panel assembly for a marine vessel having a first battery, a second battery, and a load. The power panel assembly has a panel configured to be positioned within the marine vessel. A first switch is supported by the panel and operable to selectively turn off the first battery and the second battery together. A second switch is supported by the panel and operable to selectively turn off the first battery independently of the second battery. A third switch is supported by the panel and operable to selectively turn off the second battery independently of the first battery. An indicator is supported by the panel and operatively coupled to be in a first state when the first battery is on and in a second state when the first battery is off to thereby notify an operator whether the first battery is on.

A charge control method includes acquiring a measured temperature of a lithium ion battery, acquiring a threshold value for stopping charging of the lithium ion battery according to the measured temperature of the lithium ion battery based on a relationship between a cycle life and a charging capacity of the lithium ion battery for each temperature of the lithium ion battery, and, charging the lithium ion battery based on the threshold value.

Disclosed herein are devices (e.g., audio playback devices) configured to transmit and/or receive wireless power. Wireless power can be transferred using mid-range or long-range techniques, such as electromagnetic radiation (e.g., lasers, microwaves) or electromagnetic coupling (e.g., inductive coupling, capacitive coupling). Device performance and/or power transmission may be modified dynamically based on wireless power levels, user behavior, the behavior of other devices, device grouping, or other parameters.

A storage system configured for use with an energy management system is provided and comprises a chassis comprising a plurality of slots configured to house a plurality of batteries and corresponding battery management units and a plurality of microinverters such that a user can selectively add/remove either a battery of the plurality of batteries or a microinverter of the plurality of microinverters to obtain at least one of a predetermined amount of KWh, KW, or C-rate.

Disclosed is a system for supplying and receiving electrical power from multiple electrical power buses. The system includes an electrical charge storage medium, a first switch connecting the storage medium to a first power bus, and a second switch connecting the storage medium to a second power bus. These switches are electronically controlled by a controller to manage power flow between the storage medium and the power buses.

An electronic apparatus obtains, from a battery, information about remaining power in the battery; detects a connection with a power supply apparatus, performs control to supply power from the power supply apparatus instead of from the battery, in a case where the connection with the power supply apparatus is detected; and displays a warning related to the remaining power in the battery when the remaining power in the battery is less than or equal to a predetermined threshold, in a case where the electronic apparatus operates using the power from the battery. In a case where the connection with the power supply apparatus is detected, the electronic apparatus displays the warning related to the remaining power in the battery when the remaining power in the battery is less than or equal to a second threshold.

An aerosol-generating device is provided, including: control circuitry and an energy storage configured to supply electrical energy to the control circuitry for generating aerosol from an aerosol-generating article, the control circuitry being configured to: determine a storage status including a health status of the energy storage indicative of an amount of electrical energy currently storable in the energy storage, evaluate the determined storage status with respect to at least one threshold value associated with at least one device function of the aerosol-generating device, and enable or disable, based on the evaluation, at least one device function. An aerosol-generating system including the aerosol-generating device and an aerosol-generating article is also provided.