A charging reservation method includes: an in-vehicle system, in response to a charging request, acquiring at least two energy storage apparatuses to be used for power supply that meet a charging condition and power supply status of each energy storage apparatus to be used for power supply; the in-vehicle system determining a power supply priority of each energy storage apparatus for power supply based on a selection priority and an occupancy situation of each energy storage apparatus to be used for power supply. The in-vehicle system determining a target energy storage apparatus from among the at least two energy storage apparatuses to be used for power supply based on the power supply priority and driving information for the vehicle to be charged to drive to each energy storage apparatus to be used for power supply, and sending charging reservation information to the target energy storage apparatus.

The present invention discloses an outdoor electrical system and method based on a programmable power supply, pertaining to the field of outdoor electrical appliance, wherein the programmable power supply receives a data request signal from an outdoor electrical appliance, dynamically adjusts the output voltage based on the data request data, and then outputs it to the outdoor electrical appliance; when the output power of the outdoor electrical appliance is greater than a preset threshold, the power supply output is directly output to the electrical load through a set programming and protection detection module, and when the output power is less than the preset threshold, the power supply output is adjusted through a set low power conversion module before being output to the electrical load, which achieves that the energy conversion is completed in one step within the programmable power supply, without the need for a DC-DC conversion circuit in between, effectively reducing the number of energy conversions on the power consumption side, achieving the effect of reducing energy conversion loss, and enhancing the output conversion efficiency of the outdoor electrical system.

Systems and methods for charging batteries of electric container handling equipment at container terminals comprising mobile batteries and chargers that can be transported to a location near the container handling equipment. The mobile batteries and chargers are configured for energy storage and capable of being recharged at one or more charging stations. Multiple mobile batteries and chargers can be included in the system and/or methods, and one or more or each mobile battery and charger can be configured to recharge one or more or several pieces of container handling equipment before the mobile battery and charger travels to the charging station to recharge. Included are systems for managing shipping equipment in a container terminal comprising one or more mobile battery and charger configured to deliver at least about 100 KW of power to any equipment configured for loading, unloading, and/or moving shipping containers, such as a shipping container crane.

Provided is a charging system including: a second power transmission unit; a moving mechanism that moves the second power transmission unit within a moving area including prescribed ranges within a plurality of parking spaces; and a power transmission control unit that, when a first electric vehicle is parked in a first parking space as one of a plurality of parking spaces, moves the second power transmission unit into the prescribed range of the first parking space by the moving mechanism to cause the first power transmission unit mounted to a first electric vehicle and the second power transmission unit to face each other so as to transmit power to the first power transmission unit from the second power transmission unit wirelessly to execute vehicle charging processing for charging the first electric vehicle.

A battery control apparatuses may include a measuring unit for measuring a voltage of a battery, a memory for storing a multi-stage charging protocol data, and a processor for identifying a SOC of the battery based on the voltage measurement value. The processor may perform a temporary discharging procedure, when the SOC of the battery reaches the first criterion SOC while the constant current charging procedure using the first current rate is in progress. The processor may also determine an adjusted second current rate different from the second current rate based on discharging information of the temporary discharging procedure and, after the temporary discharging procedure is finished, perform a constant current charging procedure using the adjusted second current rate.

Methods and systems are provided for optimizing energy management of an energy resource site. For instance, a hierarchical energy management system can provide optimized management of energy resource sites with large numbers of energy resources. In particular, the hierarchical energy management system can effectively control energy resources by allocating functionality using different tiers. For instance, one or more energy resources devices can comprise the lowest tier of the hierarchical energy management system. The next tier of the hierarchical energy management system can comprise one or more controllers that can manage the energy resource devices. The next tier of the hierarchical energy management system, a resource manager, generally manages the set of controllers.

A method for extending the storage lifetime of a rechargeable battery located in a device is disclosed. The battery lifetime extension method includes providing a device that derives its power from a rechargeable battery. When the device is powered off by a user, a computer implemented program utilized by the device automatically powers up the device into a lower power mode upon expiration of a variable duration timer monitored by the computing unit that continuously repeats according to a programed duration cycle. The computer implemented program then evaluates a state of charge of the rechargeable battery, determines whether the state of charge of the rechargeable battery is above or below a variable programed threshold, and causes the rechargeable battery to remain in a low power state until a charge is applied to the rechargeable battery.

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 system for charging a plurality of cordless power tool batteries includes charging circuitry and a plurality of docking stations. The charging circuitry includes a plurality of electrical connectors connectable to up to j>1 electrical loads, and primary control circuitry to direct DC output power to kj of the electrical connectors that are connected to kj electrical loads, separately and in succession. The plurality of docking stations are connectable to the plurality of electrical connectors as the kj electrical loads. Each docking station includes charging ports to receive up to m>1 of the cordless power tool batteries, and secondary control circuitry to direct the DC output power to recharge nm of the cordless power tool batteries that are received by the plurality of charging ports, separately and in succession under control of the primary control circuitry.

The present document describes techniques associated with adaptive power management for Internet-of-Things (IoT) doorbell systems. These techniques integrate supercapacitors as a secondary power source for an IoT doorbell system. Supercapacitors provide significant advantages, including longer cycle life, reduced carbon footprint throughout their lifecycle, and superior performance under harsh environmental conditions. These techniques also incorporate an adaptive input power management system, which enhances the system's compatibility by enabling the IoT doorbell to function with a lower-powered transformer, such as those found in older households. Further, an adaptive chime management system is incorporated, which improves reliability of operation of a supercapacitor-powered doorbell system.