Disclosed are a battery swapping station and a control method therefor. The battery swapping station comprises: a first battery swapping platform being arranged between a first charging compartment and a second charging compartment; a first shuttle travels between the first battery charging compartment and the first battery swapping platform, a second shuttle travels between the second battery charging compartment and the first battery swapping platform; a control unit being electrically connected to the first shuttle and to the second shuttle, used for the following operation: when operating a same vehicle on the first battery swapping platform, if the first shuttle is executing either operation of battery unmounting or battery mounting, the second shuttle executes the other operation. Through the battery swapping station and the control method therefor, the waiting time for vehicles when swapping batteries can be reduced, thus increasing the battery swapping efficiency of the battery swapping station.

A overcharge-aware electrochromic device driver for preventing overcharge of an electrochromic device is described. One driver applies a constant supply current to an electrochromic device from a power supply. The driver determines an amount of charge as a function of time and current supplied to the electrochromic device. The driver determines whether the amount of charge reaches an overcharge limit before a sense voltage reaches a first sense voltage limit. Responsive to the amount of charge reaching the overcharge limit, the driver sets the sense voltage as a second sense voltage limit that is lower than the first sense voltage limit, ceases the constant supply current, and applies one of a variable voltage or a variable current to the electrochromic device from the power supply to maintain the sense voltage at the second sense voltage limit.

A diagnostic apparatus for a secondary battery includes a control device. The control device acquires an electricity storage amount that is the amount of electricity stored in the secondary battery, and V/K indicating the magnitude of change in OCV of the secondary battery with respect to temperature change of the secondary battery. The control device determines whether or not an SOC unevenness occurs in an electrode surface of the secondary battery by using the acquired electricity storage amount and V/K.

A computer implemented method for managing charge availability of a charge unit (CU) to obtain charge for a battery of an electric vehicle (EV) is provided. The CU includes a computer for processing at least part of the method and for communicating with a server over a network. The method includes receiving, by the server, status information from the computer of the CU. The method includes sending to the computer of the CU instructions to make a reservation for the CU. The reservation is for a user account that has requested a desire to charge the battery of the electric vehicle of the user at the CU or another CU. The method includes sending, by the server, a confirmation for the reservation to the user account. The confirmation is viewable via a device having access to the server via the user account. The method includes sending, by the server, a data regarding a time of availability of the CU to the user account for the reservation. The computer of the CU is configured to display a visual indicator regarding the reservation of the CU.

Provided is a battery share system in which a necessary change in the scale of a battery exchange device can be made with ease and at low cost even after the start of operating a service, and the battery exchange device can be made simple without any features for rainwater resistance. A plurality of battery charging modules for holding a battery pack are attached to a support post to form a battery exchange device. A battery charging module is detachably attached to the support post, and includes a tray for guiding the battery pack to a predetermined mounting position and holding the battery pack at the mounting position. The tray includes a wireless power transmitter with a transmitter coil for contactless transmission of charging power to the battery pack, and a wireless communication device for contactless communications of battery management information with the battery pack.

A charge control device for charging a battery with electric power supplied from an external power supply includes: an external power supply information acquisition unit that acquires external power supply information including a voltage of the external power supply; a battery information acquisition unit that acquires battery information including a temperature, a voltage, and an electric current of the battery; a power consumption acquisition unit that acquires an amount of electric power supplied from the battery to an auxiliary device as a power consumption amount; and a charge time estimation unit that estimates a charge time of the battery. The charge time estimation unit acquires an initial value of a state of charge of the battery based on the battery information, and estimates the charge time based on the battery temperature, the external power supply information, the power consumption amount, and the initial value of the state of charge.

A wireless power receiver is for receiving power from a wireless power transmitter, the wireless power receiver may include at least one of: resonant circuitry; communication circuitry; and a controller configured to at least one of: enable a charging function to receive, through the resonant circuitry from the wireless power transmitter, first power for charging the wireless power receive, transmit, through the communication circuitry, a first signal indicating complete charge to the wireless power receiver while receiving the first power, receive, through the communication circuitry, a first charging function control signal that disables a charging function from the wireless power transmitter, based on the receiving of the first charging function control signal, disable the charging function, after disabling the charging function, identify that charging is required, transmit, through the communication circuitry, a second signal including information which is, by the wireless power receiver, set based on identifying that the charging is required to the wireless power transmitter, receive, through the communication circuitry, a second charging function control signal, and based on the receiving of the second charging function control signal, enable the charging function without outputting the indication related to the charging.

A battery pack includes a rechargeable battery, a charge FET including a parallel diode connected in series with the battery, and a control circuit configured to control turning on and off of the charge FET. The control circuit includes a discriminating circuit configured to detect a bicycle-mounted state and a charger-connected state, and a memory configured to store a full charge voltage of the battery. The control circuit is configured to, while the discriminating circuit detects the bicycle-mounted state. turn off the charge FET. The control circuit is configured to, while the discriminating circuit detects the charger-connected state, stop charging the battery by switching the charge FET to turn off the charge FET upon detecting that a voltage of the battery charged by a charger becomes higher than the full charge voltage.

This disclosure provides a battery management system. The battery management system comprises a buck converter, a discharge loop, and a microprocessor. The microprocessor comprises a battery status monitoring circuit, a timer, and a controller. When the status of the battery is in a static state, the timer starts counting a time. If the time counted by the timer is greater than or equal to a time threshold, the controller controls that the buck converter executes a bucking to an output voltage of the battery, and then controls that the discharge loop executes a discharging to the battery. Accordingly, when the status of the battery is in a static state, the battery capacity can be discharged to a safe value moderately, so that the safety of the long-storage of the battery can be ensured, and the life of the battery can be prolonged.

A battery bank unit includes: a first battery bank and a second battery bank that are connected in parallel to each other; and a control apparatus that starts charging the second battery bank after the first battery bank is fully charged. The control apparatus calculates remaining time to complete charge of the battery bank unit based on a temperature of the battery bank unit at a start of the charge of the battery bank unit and a state of charge (SOC) of at least one of the first battery bank and/or the second battery bank at the start of the charge of the battery bank unit.