Provided are a charging device and a charging method. The charging device comprises: a charging device body and an engine starting interface provided on the charging device body, wherein the charging device body comprises: a power supply, a control unit, and at least one electromagnetic coil. The control unit is respectively connected to the power supply and the at least one electromagnetic coil, and the control unit is configured to control the at least one electromagnetic coil to generate a varying magnetic field when the amount of power of the power supply is greater than or equal to a pre-set amount of power and the charging device is wirelessly connected to a device to be charged, so that an internal coil of the device to be charged generates a varying current to cause the charging device to wirelessly charge the device to be charged.

A jumper cable which includes a receptacle mounted on, near or within a battery casing. The receptacle may include a socket having a pair of circular contacts on the inner circumference thereof electrically connected to battery terminals. The device may also include a cable having a plug on each end configured to mate with the receptacle socket. Such a plug may include a larger-diameter ring for engaging the upper contact and a smaller-diameter ring for engaging the lower contact when the plug is inserted into the socket, Accordingly, if a battery needs recharging, a plug is inserted into the receptacle associated with the dead battery and the opposing plug is inserted into a receptacle associated with a charged battery to establish electrical interconnection there between. Alternatively, an adapter having a socket and electrical clamps for grasping battery terminals may be used when a receptacle is not connected to one of the batteries.

A handheld device for jump starting a vehicle engine includes a rechargeable lithium ion battery pack and a microcontroller. The lithium ion battery is coupled to a power output port of the device through a FET smart switch actuated by the microcontroller. A vehicle battery isolation sensor connected in circuit with positive and negative polarity outputs detects the presence of a vehicle battery connected between the positive and negative polarity outputs. A reverse polarity sensor connected in circuit with the positive and negative polarity outputs detects the polarity of a vehicle battery connected between the positive and negative polarity outputs, such that the microcontroller will enable power to be delivered from the lithium ion power pack to the output port only when a good battery is connected to the output port and only when the battery is connected with proper polarity of positive and negative terminals.

An auto safety jumper module to prevent accidental short circuits or wrong connections between a jump start system and a motor vehicle battery when jump starting such motor vehicle. The module can be fully automatic and capable of detecting when a motor vehicle battery is connected to it. The module, which can be integrated into or an external add-on to a jump start system, does not need an external sensing wire(s) to detect when alligator clamps of the jump start system are connected to a vehicle battery post or to detect when the alligator clamps are disconnected.

An apparatus and methods are provided for a portable battery pack for recharging an onboard vehicle battery for extending driving range. The portable battery pack comprises a case that includes a base joined to a lid by way of hinges. A battery array is housed within the base, and electrical terminals are mounted onto the lid. A charging cable may be connected to the electrical terminals and plugged into a charge port of the vehicle. The battery array comprises a multiplicity of battery cells that may be coupled in parallel, in series, or a combination thereof. A battery management system is coupled with the battery array and configured to ensure that the battery array operates safely. The electrical terminals may be coupled with an external power inverter, or a power inverted may be housed within the case and incorporated into the power battery pack.

A rechargeable battery jump starting device with a vehicle or equipment battery detection system. The vehicle or equipment battery detection system is configured for detecting the connection of the rechargeable battery jump starting device with the vehicle or equipment battery to be jump charged.

The present disclosure discloses an emergency starting power supply, which comprises an energy storage module, an output interface, a first detection module, a switch module and a control module. The first detection module is electrically connected to the output interface, and detects a voltage of an automotive battery through the output interface when the output interface is connected to the automotive battery. The switch module is electrically connected between the energy storage module and the output interface. The control module is electrically connected to the first detection module and the switch module, respectively. The control module is used to determine whether a voltage drop of the battery within a first preset time is greater than a preset voltage drop based on the voltage detected by the first detection module. The control module controls switch module to close to switch on the electrical connection between the energy storage module and the output interface when the voltage drop in the first preset time of the battery is greater than the preset voltage drop, so that the energy storage module provides an emergency starting current through the output interface and the battery to start an automobile in an emergency. The present disclosure also discloses an emergency starting method. The present disclosure can improve the usage efficiency of the emergency starting power supply.

Disclosed are a starting device and a starting system of a vehicle. The starting device includes a first connection line, a second connection line and a starting module. The first connecting line and the second connecting line are configured to transmit a current provided by a starting power source to provide a voltage of the starting power source to a vehicle; the starting module is connected to at least one of the first connection line and the second connection line; the starting module is turned on when the first connection line and the second connection line are not connected to a vehicle battery of the vehicle; and the starting module is turned off, when the vehicle battery of the vehicle is charged and the first connection line and the second connection line are abnormally connected to the vehicle battery of the vehicle.

A charging apparatus includes at least one housing including a compartment, an access door connected to the housing and covering the compartment, the access door being movable from an open position to a closed position, a releasable latching mechanism configured to latch the access door in the closed position, a charging terminal in the compartment, a voltage sensing terminal, and a door release circuit coupled to the voltage sensing terminal and to the releasable latching mechanisms and configured to sense a charging voltage applied to the voltage sensing terminal. The door release circuit is configured to selectively unlatch the releasable latching mechanism in response to a voltage within a predetermined voltage range being applied to the voltage sensing terminal.

The present disclosure discloses an electric tool power supply having a vehicle starting function. The electric tool power supply comprises a power supply component, a first output interface, and a second output interface. The power supply component is configured to store and provide electrical energy. The first output interface is electrically coupled to the power supply component. The power supply component is configured to provide operating voltage for an electric tool through the first output interface when the electric tool power supply is installed on the electric tool. The second output interface is electrically coupled to the power supply component. The power supply component is configured to output instantaneous large-current to a starter of a vehicle through the second output interface when the electric tool power supply is installed on the vehicle, so as to start the starter.