A surface cleaning apparatus, such as a portable surface cleaning apparatus is powered by one or more ultracapacitors and a charging unit for same is provided.

A dual-battery charging and discharging method is described to be used for a dual-screen terminal. The method includes: obtaining a state identifier of the first display screen and a state identifier of the second display screen; determining whether the dual-screen terminal is in a charging state; in response to determining that the dual-screen terminal is in a charging state, controlling the first battery and the second battery to be charged according to the state identifier of the first display screen and the state identifier of the second display screen; and in response to determining that the dual-screen terminal is not in a charging state, controlling whether the first battery and the second battery supply power to the dual-screen terminal according to the state identifier of the first display screen and the state identifier of the second display screen.

A charging dock applied in an intelligence loudspeaker box, includes a shell, a battery module and a charging cable. The intelligence loudspeaker box has a charging hole. A top surface of the shell is recessed downward to form a receiving space equipped with a pogo pin connector. The intelligence loudspeaker box is received in the receiving groove. One end of the pogo pin connector is connected to the intelligence loudspeaker box. The battery module is disposed in the shell. The battery module includes a circuit board. A top surface of the circuit board is equipped with a docking element. The docking element is connected to the other end of the pogo pin connector. One end of the charging cable is connected to the charging hole, and the other end of the charging cable is connected to a power unit.

In part, the disclosure relates to a method of reducing the interaction of mobile phones and capacitive touchscreens with electrically charged aerosols. The method may include reducing electrostatic field from a mobile device using one or more conductive meshes sized to shield a region of a mobile device, wherein the region of the mobile device is an electric field source. Additionally, the method may also include processing signals used to charge the mobile device using one or more of a linear regulator and a signal conditioner to reduce harmonic content of the signals such that the voltage level of signals used to charge the mobile device is less than about 100 V/m RMS, or even more preferably to less than about 20 V/m RMS.

A power receiving apparatus includes a power receiving unit and a control unit. The power receiving unit receives a first power from a power supply apparatus via a connection unit. The control unit determines whether or not authentication information including identification information of the power supply apparatus is authentic, and determines whether or not the power supply apparatus has passed a compliance test based on the identification information. The power receiving unit is allowed to receive a second power greater than the first power, in a case where the authentication information is authentic and the power supply apparatus has passed the compliance test.

An electric processing tool includes an energy supply device and an open-loop or closed-loop control unit. The energy supply device includes at least two energy sources which are interconnected, each in a series circuit with an electronic component for applying the logical operator “OR” to the individual current of the electronic component in question, to form a common star point, such that a resulting total current for supplying the electric processing tool results. At least a subset of the energy sources, in particular each energy source, is assigned a current-measuring unit for measuring the individual current of the energy source in question. The open-loop or closed-loop control unit is configured to adapt the total current to the measured individual currents.

An apparatus and a method is described comprising: charging a battery of an aerosol generating device in a first mode of operation when a charge level of the battery is below a first threshold; and charging the battery of the aerosol generating device in a second mode of operation when the charge level of the battery is above the first threshold.

An apparatus and a method for an aerosol generating device is described, the apparatus including a control module and a charging controller. The charging controller is configured to control charging of a battery at a first charging rate in a first charging mode and to control charging of the battery at a second charging rate, lower than the first charging rate, in a second charging mode. The control module is configured to determine whether the aerosol generating device is in use. The charging controller, when operating in the second charging mode, is configured to change the charging mode to the first charging mode in the event that the control module determines that the aerosol generating device is in use.

An apparatus and a method for an aerosol generating device is described, the apparatus including a charging controller. The charging controller is configured to control charging of a battery using a power supply at a charging current dependent, at least in part, on power capabilities of the power supply.

An arrangement for powering a mobile device with a fast charge discharge power source such as a supercapacitor without reliance on resistors to protect device electronics from comparatively high supercapacitor current discharge rates. The arrangement protects device electronics by coordinating a switch with a charge controller to balance recharge of a battery electronically coupled to the supercapacitor. The arrangement and techniques utilized result in a substantially continuous trickle charging of the battery from the supercapacitor. In this way, the battery is continuously charged so long as the supercapacitor holds power and the battery remains the safe medium through which device electronics are powered.