A first power storage pack wiredly transmits identification information retained in the first power storage pack to a charging device when the first power storage pack is detached from an electric movable body. The charging device wiredly transmits the identification information received from the first power storage pack to a second power storage pack. The controller of the second power storage pack transmits via near-field communication a signal including the identification information received from the charging device. The electric movable body collates whether or not the identification information included in the received signal matches the identification information retained in the first power storage pack.

A control integrated structure of an electrically assisted bicycle includes a battery management system, a controller and a motor. The battery management system includes a battery assembly and an analog front end. The analog front end is electrically connected to the battery assembly. The controller includes a micro controller unit and a driver. The micro controller unit is electrically connected to the analog front end. The driver is electrically connected to the micro controller unit. The motor is electrically connected to the driver and controlled by the driver. The micro controller unit of the controller is directly electrically connected between the analog front end of the battery management system and the driver, thereby enabling the micro controller unit to control the motor via the driver.

An intelligent energy module of an electrically assisted bicycle includes a battery management system, a controller and a motor. The battery management system includes a battery and an analog front end. The analog front end is electrically connected to the battery assembly. The controller includes a micro controller unit and a driver. The micro controller unit is electrically connected to the analog front end. The driver electrically connected to the micro controller unit. The motor is electrically connected to the driver and controlled by the driver. The battery assembly, the analog front end, the micro controller unit and the driver are disposed on a same circuit board.

An electric assist system usable for an electric assist bicycle includes an electric motor that generates assist power assisting human power of a rider of the electric assist bicycle, a rotation sensor that outputs a signal in accordance with a rotation of a rotatable component that rotates to operate the electric assist bicycle, an acceleration sensor that outputs a signal in accordance with an acceleration of the electric assist bicycle in a traveling direction thereof, and a controller that calculates a speed of the electric assist bicycle based on an output signal of the rotation sensor and an output signal of the acceleration sensor.

A bicycle battery system includes a battery tray that mounts within a cavity formed by an opening in a bicycle tube. The battery tray includes a latch mechanism, a first base portion that mounts to the latch mechanism, and a second base portion that mounts to the first base portion. The first base portion includes a cup that is sized to mate with an interior of the bicycle tube. The system also includes a battery that is sized to fit within the battery tray. A first end of the battery includes a protrusion that is sized to fit within the cup of the first base portion, and a second end of the battery includes a secondary latch to secure the second end to the battery tray. The system further includes a battery cover plate mounted to the battery.

A charging cabinet includes a power conversion circuit, an input interface, and a plurality of output interfaces. An input end of the power conversion circuit is connected to the input interface. The power conversion circuit converts an alternating current supplied by an alternating current power grid into a direct current, and then charges a plurality of battery packs by using the direct current.

The solar tent comprises a canopy tent with integrated solar panels into the roof of a medical tent design. This technology allows the tent to capture solar energy, and convert it into electrical energy which can then be used to power lights, medical devices, and other equipment. This technology is foldable and collapsible to allow the tent to be both deployed and stored rapidly. The solar tent helps medical professionals overcome the challenges of lack of sufficient electricity while operating from a canopy tent, in the face of COVID-19.

A battery pack is provided. The battery pack including a plurality of battery cells; a cell holder including a peripheral wall and a plurality of cell storage units; and a plurality of ribs integrally molded with the cell holder between the peripheral wall of the cell holder and the cell storage unit.

A battery charging system of an electronic device includes: a battery having a first nominal voltage and including: battery cells each having a second nominal voltage that is less than the first nominal voltage; and electrical connectors that electrically connect ones of the battery cells to provide the battery with the first nominal voltage; a first charge port configured to electrically connect to a first type of connector; a charging module configured to: receive power via the first charge port; and when a voltage of the received power is less than the first nominal voltage at least one of: charge ones of the battery cells individually; and charge groups of two or more of the battery cells.

A shared battery system includes a battery having unique identification information, a communication unit communication-connected with a user terminal to receive user information from the user terminal, and an authentication unit configured to perform user authentication based on the user information. A controller is configured to control the authentication unit to perform the user authentication when a communication connection with the user terminal is made, to control the battery to supply electrical energy to a shared mobility device based on a use approval of the shared mobility device when the battery is mounted to the mobility device, to acquire usage information of the shared mobility device therefrom when the electrical energy is supplied to the shared mobility device, and to control the communication unit to transmit the acquired usage information of the shared mobility device and status information of the battery.