A chargeable device and a charging method are proposed. The chargeable device includes a charging interface and a first charging circuit coupled to the charging interface. The first charging circuit receives voltage and current outputted by an adapter through the charging interface and to apply the voltage and current outputted by the adapter between two terminals of multiple cells coupled in series built in the chargeable device to charge the multiple cells directly.

The present invention relates to a mobile charging device, a mobile charging system and a mobile charging method. Said mobile charging system (1000) comprises an order system (100), a mobile charging device (200) and a charged object (300). Said mobile charging device (200) comprises a plurality of energy storage units (202.sub.1202.sub.n) and a power controller (201) connected to said plurality of energy storage units (202.sub.1202.sub.n) via an internal communication bus. In addition, said mobile charging device (200) further comprises a voltage transformer (203.sub.1203.sub.n) and/or a switch array (204).

In one embodiment, a system comprising a battery set comprising plural battery cells configured in a circuit; and a control system configured to switch current flow in the circuit from bi-directional flow to and from the battery set to mono-directional flow to or from the battery set based on an over-charging or over-discharging condition.

Aspects of the present disclosure are directed to a method and/or apparatus for use with battery cells having an actual voltage-sourcing level that is at or above a specified battery-output level. Switch circuitry is selectively activated for passing current, and a monitoring circuit is responsive to activation of the switching circuitry by distributing energy corresponding to an actual voltage-sourcing level of a particular one of the battery cells to a voltage node. A voltage-measurement circuit provides an indication of the actual voltage-sourcing level across the particular battery cell by ascertaining voltage differentials between the voltage node and respective voltage nodes of the battery cell, the ascertained voltage differentials being less than the specified battery-output level.

An apparatus for balancing a battery according to the present disclosure includes: a voltage measuring unit configured to measure a voltage of each of a plurality of battery cells connected to each other; and a control unit configured to calculate a state of charge (SOC) of each of the battery cells from the voltage measured by the voltage measuring unit, select a standard cell and a target group on the basis of the calculated SOCs of the battery cells, choose one battery cell among battery cells belonging to the selected target group as a target cell, calculate a balancing time according to a difference between the SOC of the standard cell and the SOC of the target cell, and perform balancing to the battery cells belonging to the target group during the calculated balancing time.

The present application discloses a series-multiple battery pack management system, including: a plurality of series-multiple battery packs; a plurality of electric quantity measurement modules, respectively connected to the plurality of series-multiple battery packs to obtain parameter information of the plurality of series-multiple battery packs, and further obtain compensation parameters according to the parameter information; and a controller, respectively connected to the plurality of electric quantity measurement modules, and configured to manage the plurality of series-multiple battery packs according to the compensation parameters. By using the series-multiple battery pack management system of the present application, relatively accurate current electric quantity information and a relatively accurate current battery use status can be obtained, so that the battery electric quantity of the battery management system can be measured more accurately.

A floor stand for supporting one or more mobile device charging stations for charging one or more mobile devices, including a vertical support member having an upper end and a lower end, wherein the one or more mobile device charging stations are supported on the vertical support member.

Embodiments of the present invention are directed to a cell protection system that may be employed in high voltage systems such as grid scale energy storage systems. In some embodiments, the advanced cell protection system includes a proactive balancing system for balancing one or more battery units of the energy storage systems. In some embodiments, the advanced cell protection system includes a switching protection system for safely connecting and disconnecting the one or more battery units of the energy storage systems to other systems. In some embodiments, the advanced cell protection system includes an isolated communication system for allowing the one or more battery units to safely communicate with each other and at least one controller of the energy storage system.

The systems and methods described herein are directed to techniques for improving battery life performance of end devices in resource monitoring systems which transmit data using low-power, wide area network (LPWAN) technologies. Further, the techniques include providing sensor interfaces in the end devices configured to communicate with multiple types of metrology sensors. Additionally, the systems and methods include techniques for reducing the size of a concentrator of a gateway device which receives resource measurement data from end devices. The reduced size of the concentrator results in smaller, more compact gateway devices that consume less energy and reduce heat dissipation experienced in gateway devices. The concentrator may comply with modular interface standards, and include two radios configured for transmitting 1-watt signals. Lastly, the systems and methods include techniques for fully redundant radio architecture within a gateway device, allowing for maximum range and minimizing downtime due to transmission overlap.

A power continuity unit includes a battery pack, a power converter, and a housing assembly. The battery pack includes a plurality of battery cells with monitoring devices that monitor the voltage of the associated battery cell and trim excess voltage. During daytime, the power converter converts a portion of the direct current (DC) power it receives from an alternative energy device into alternating current (AC) power and directs it to a user, while the remainder is stored in the battery pack. During nighttime, the power converter converts DC power it receives from the battery pack into alternating current (AC) power and directs it to the user. The housing assembly provides structural support and protection to the battery pack; its configuration depends on the type of battery cell being used.