A European standard-based double-gun high-power quick charging system and method are disclosed. The system includes a battery management system, and at least two paths composed of corresponding charging communication modules, chargers and high-voltage charging loops, each of the chargers connected to at least one charging gun; the battery management system independently controls the charging communication module and high-voltage charging loop, and performs mapping management on a control signal and high-voltage charging loop; information interaction between different charging control units and chargers is carried out independently. By designing the system compatibility and time sequence difference when a double-gun system is connected, the problem of idle chargers is solved, so that the charging speed is increased, and the problems of long-time occupation of charging resources by vehicles and low utilization efficiency of vehicles are avoided; insulation detection performed on the initial charging of vehicle battery system increases safety of the system.

A method of operating a hearing assistive device having a rechargeable battery, and comprises reading battery status data from a battery controller during use of the hearing assistive device, transferring the battery status data wirelessly from the hearing assistive device to a computing device and predicting, in the computing device, a remaining battery time for the rechargeable battery based upon the battery status data received. Once the remaining battery time is predicted, it is compared with a predefined use pattern for hearing assistive device and a user becomes notified if a conflict between the remaining battery time and the predefined use pattern is observed.

The present disclosure provides a charging system and method and a power adapter. The system includes: a battery; a first rectification unit, configured to output a voltage with a first pulsating waveform; a switch unit, configured to modulate the voltage with the first pulsating waveform; a transformer, configured to output a voltage with a second pulsating waveform according to the modulated voltage; a second rectification unit, configured to rectify the voltage with the second pulsating waveform to output a voltage with a third pulsating waveform; and a control unit, configured to output the control signal to the switch unit to decrease a length of a valley of the voltage with the third pulsating waveform such that a peak value of a voltage of the battery is sampled.

A battery charger includes a housing having support structure for simultaneously supporting at least two batteries of different types for charging including a first battery of a first type and a second batter of a second type. The battery charger further includes charger electronics supported by the housing and operable to output charging current to charge the first battery and charging current to charge the second battery. A fan is operable to cause air flow through the housing. A fan speed of the fan is adjustable based on a temperature of the battery charger (i) while at least one of the at least two batteries is coupled to the battery charger for charging and (ii) while no batteries are coupled to the battery charger for charging.

A switching unit is provided for each of a plurality of batteries arranged in series, and switches between a connected state where the corresponding battery is connected in series with another battery and a non-connected state where series connection between the corresponding battery and the other battery is disconnected. A control unit controls the switching unit corresponding to the battery to switch to the non-connected state when it is determined that the corresponding battery reaches a charge end voltage during charging or a discharge end voltage during discharging, and determinates deterioration of the batteries. Further, the control unit changes the charge end voltage or the discharge end voltage for each of the plurality of batteries in accordance with a deterioration state of the plurality of batteries.

There is described a method of reserving a capacity of one or more energy storage devices. The method includes forecasting, based on past electricity demand of a site, future electricity demand of the site over a future time period. The method further includes determining a forecasting error between the forecasted future electricity demand and an actual electricity demand of the site over the future time period. The method further includes adjusting, based on the forecasting error, a target state of charge (SOC) of one or more energy storage devices. The method further includes reserving, based on the adjusted target SOC, a capacity of the one or more energy storage devices.

A battery management device includes: a first switch state acquisition unit configured to acquire the state of an ignition switch; a determination unit configured to determine to perform correction control for correcting an error in the state of charge (SOC) of the battery when the ignition switch is operated from ON to OFF; a correction control unit configured to perform the correction control of the SOC of the battery when it is determined that the correction control is to be performed; and a second switch state acquisition unit configured to acquire the state of a cancel switch for canceling the execution of the correction control. When the ignition switch is operated from ON to OFF while the cancel switch is ON, the determination unit determines that the correction control is not to be performed.

An App executed on a mobile device will create a user profile block in the memory unit of a charging unit, and help set up charging preferences and backup preferences in the profile block, and create a backup folder to store backup files from the mobile device. The App will monitor the charging of the mobile device. According to the backup preferences, the App performs a full backup task or a differential backup task for only local files, only cloud files or both; the App sets the data transmission speed between the charging unit and the mobile device; the App performs a full scan or a quick scan on the files in the mobile device and the files in the backup folder to determine between the mobile device and the backup folder whether the files are the same; and creates quick scan index data for the first time backup files.

The general field of the disclosure herein relates to the design of one or more health related monitoring or maintenance devices. These devices may include but are not limited to devices that monitor and/or maintain the health of users or devices that monitor and/or maintain the health of assets. The devices include oral cleaning devices for maintaining and monitoring the oral health of users, clothing for monitoring the health and fitness of users and charging pads which may monitor the health or assets being charged. Sensors may be integrated in these devices including but not limited to IMUs, thermocouples or oral cleaning devices, IMUs in clothing like shoes or wrist bands, or timers or charging sensors in magnetic surfaces which may cause one or more objects and/or other magnetic surfaces to float when a desired function is achieved.

The invention relates to a battery which includes an internal voltage regulation device for regulating the output voltage of the battery, and an input voltage applied to the battery. The voltage regulation device may be configured to provide an output voltage which is less than an internal power source voltage. A switch is provided to switch the voltage regulation device between operating modes in order to control the output voltage regulation, and protect the internal power source from damage.