Abstract: Methods and systems for charging rate management based on usage rate of charging stations for use in a server are provided. The charging field includes a plurality of electric vehicle charging stations for charging at least one electric vehicle. First, the server connects to each of the electric vehicle charging stations through the network to obtain a usage status of the respective electric vehicle charging station. Then, the server calculates a usage rate of the charging field according to the usage status of the respective electric vehicle charging station, and determines a charging rate for the charging field according to the usage rate.

Abstract: In a method and a device for charging an electric vehicle with a charging current, having: a connection for connecting to a domestic mains supply connected to a power generating plant, a power supply grid, an energy management device, and possibly an energy storage; a charging connection for connecting to the electric vehicle (11) to be charged; and a control device for controlling the charging current for charging the electric vehicle, at least one device determines the surplus power of the domestic mains supply and the power drawn from the power supply grid and compares them with at least one activation threshold and/or deactivation threshold. The control device is designed so that the charging current for charging the electric vehicle is according to the at least two preset charging currents, by activating or deactivating the corresponding preset charging current when upon reaching the corresponding activation threshold values or deactivation threshold values.

Abstract: Disclosed is an apparatus and method for controlling a turn-on sequence of switches included in a parallel multi battery pack, including a processor that receives a switch voltage value from a voltage sensor coupled to a kth sequence switch unit (k is a turn-on sequence index, which is a natural number of 2 to n) before turning on the kth sequence switch, then turns on the kth sequence switch, subsequently receives a switch current value from a current sensor connected to the kth sequence switch, counts a watt energy value consumed in the kth sequence switch from the switch voltage value and the switch current value and determines the turn-on sequence of the first to nth switches in descending order from a switch having a greatest watt energy count value.

Abstract: An overcharging protection system monitors the temperature of a cable used to transfer electricity from a power source to a personal electronic device. If the temperature as detected by a thermometer device of a sensor crosses a threshold, a bridge of a cutoff device is retracted disconnecting the two pieces of the cable to prevent any further increase in temperature due to charging. The thermometer device and cutoff device are housed in the interior space of a casing. The casing attaches to the cable.

Abstract: The present invention includes a cable guide that guide a charging cable out of a rotating chamber; a rotating cylinder that is hollow inside and a form of bottom opened drum; a rotating disk, which has a fan shaped charging cable through hole and is formed from rotating cylinder's open bottom, that rotates the rotating cylinder; a fixed chamber located symmetrically below the rotating disk; a rotating support module, located under the center of the rotating disk, that rotates the rotating disk; a power module that provides torque to the rotation support module. The invention provides ease of shortening and lengthening depending on charging mode and standby mode.

Abstract: A method for operating a battery module, including multiple battery cells. The method includes: a) ascertaining cell voltages of the individual battery cells at a starting point in time; b) ascertaining at the starting point in time an average cell voltage from the cell voltages of the battery cells ascertained at the starting point in time; c) estimating the cell voltage of at least one battery cell at an operating point in time if the cell voltage of the battery cell is not measurable at the operating point in time, taking into account the cell voltage of the battery cell ascertained at the starting point in time, the average cell voltage ascertained at the starting point in time, and an average cell voltage ascertained at the operating point in time.

Abstract: A method of establishing a secure wireless communication pairing using a wireless charging for authentication via an out-of-band channel. The method includes a telephone base detecting presence of a wireless handset and initiating a wireless charging process to charge the wireless handset upon detecting the presence of the wireless handset. The method further includes establishing a secure wireless communication pairing by telephone base with the wireless handset, based on information exchanged as part of the wireless charging process.