A watch band changing cradle for a smart watch eliminates the need to use a finger nail to press release buttons on the backside surface of a smart watch when changing or swapping watch bands using slide-in band attachment fittings. The cradle is configured so that the smart watch nests and naturally aligns itself in the cradle so that release protrusions in the cradle can be used reliably to depress the release buttons on the backside of the smart watch. The cradle can be adapted to hold a disc-shaped induction charging pad which is magnetically attracted to the smart watch. The cradle can make the smart watch easier to stow when charging, and the magnetic attraction helps to align and hold the smart watch in the cradle.

A charging and storage system provides a conveyor system within a housing that conveys electronic devices through the housing to charging devices located withing the housing. Charging contacts on an adjustment arm adjust between a charging position that charges the electronic devices and a transport position that allows movement of the electronic devices through the housing without contacting the charging contacts. A charging device located at each charging location charges the device while the device is stored within the housing. The conveyor system moves the electronic devices to these fixed charging locations to charge the devices while storing the devices. The conveyor system releases the electronic devices to an exit ramp that guides the electronic devices to a release aperture for removal from the housing.

In an aspect, a system for recharging an electric vehicle. A system includes an electric vehicle. An electric vehicle includes at least a propulsor. An electric vehicle includes a recharging connector electrically connected to a power source. An electric vehicle includes a power storage unit. A power storage unit is configured to store power. An electric vehicle includes a power supply circuit. A power supply circuit is in electric communication with a power storage unit and recharging connector. A power supply circuit includes a buck-boost regulator. A buck-boost regulator includes at least an inductor. A buck-boost regulator includes a switching device to supply intermittent current to at least an inductor. At least one of at least an inductor and a switching device is a component of at least a propulsor motor.

A power storage system of the present technology includes a battery board configured to accommodate a secondary battery, a branch board, a first frame on which the battery board is placed, a second frame on which the branch board is placed, and a plurality of connection wirings that are disposed in the first frame and the second frame and connects the battery board and the branch board. The plurality of connection wirings are aggregated in the second frame.

A multifunctional charging station is provided. The multifunctional charging station includes a housing, an alarm clock, an AC input connector, an AC output interface, a DC output interface, a luminous display screen, a wireless charging system, a controller and a managing circuit. The multifunctional charging station is configured to optimally supply electrical power to AC and DC electric devices, while wirelessly charging electric devices at the same time, and functions as an alarm clock and lighting system (e.g., a nightlight).

Methods and systems of providing a connection status of a battery powered end point device. One system includes an end point device associated with a facility. The end point device including a housing including a receiving portion and a lid portion and a boss protruding from an inner surface of the lid portion. The end point device also includes a switch associated with the receiving portion of the housing and an electronic processor communicatively coupled to the switch. The electronic processor is configured to monitor a current position of the switch. The electronic processor is also configured to, in response to determining that the current position of the switch is opened, determine a status of the end point device and provide a visual indication of the status of the end point device.

Certain aspects relate to a battery pack for electric vertical take-off and landing aircraft. Exemplary battery pack includes a first pouch cell, a second pouch cell, at least a sensor, where the at least a sensor is configured to sense battery pack data and transmit the battery pack data to a data storage system, and a vent configured to vent the ejecta from the first pouch cell. In some embodiments, battery pack may be configured to power at least a propulsor component.

A handheld device includes an electronic instrument and a capacitive power supply for storing and delivering power to the electronic instrument. The capacitive power supply includes at least one capacitor, and an electronic circuit operable to boost a voltage from the capacitor to a higher voltage for use by the electronic instrument. The capacitive power supply can be rapidly recharged. Some configurations include an accelerometer which permits the handheld device to detect movement and perform various operations responsive to detected movement. A dual charging station is also disclosed.

A method and apparatus are provided for determining, by a wireless power transmitter, whether a wireless power receiver is removed from a wireless power network managed by the wireless power transmitter. The method includes transmitting a command signal to report power information of the wireless power receiver at stated periods; determining whether a report signal corresponding to the command signal is received from the wireless power receiver; and determining that the wireless power receiver is removed from the wireless power network, if the report signal is not received after transmitting the command signal a predetermined number of times at the stated periods.

A charger cradle for recharging a rechargeable lighting device is described. The cradle may include two prongs that flex outwards to allow a lighting device to be inserted into the cradle. After the lighting device is fully inserted, the prongs resume a normal position to exert an inward force on the lighting device to secure it in place. The cradle may also include two moveable cradle arms, in lieu of two prongs, to allow a spring mechanism within the device to motivate the moveable cradle arms to grasp a lighting device when the lighting device is inserted into the rechargeable lighting device.