A system and method includes a secondary energy storage system (SESS) and a control system. The SESS is configured to be disposed onboard a vehicle and conductively connected via switch devices to a primary battery and a cranking device of the vehicle. The control system is configured to control the switch devices to close a conductive path to discharge electric current from the SESS for powering the cranking device to rotate an engine shaft during a cranking operation. The control system is configured to control the switch devices to open the conductive path and prevent discharge of electric current from the SESS after the cranking operation is complete.

A vehicle battery jump starter including a battery pack interface configured to receive at least one of a first rechargeable battery pack having a first nominal voltage and a second rechargeable battery pack having a second nominal voltage different from the first nominal voltage, a power boost module including one or more energy storage devices, and terminal clamps configured to electrically connect the vehicle battery jump starter to a vehicle battery. The jump starter further includes a controller having an electronic processor configured to close a jump start switch in response to detecting an attempted vehicle start, close a first bypass switch when the voltage of the battery pack is greater than the voltage threshold, and close the second bypass switch when the voltage of the battery pack is less than the voltage threshold.

A controller of a host system executes a method for detecting an external AC electrical device. While an AC charging inlet of the host system is electrically connected to the device via different vehicle-to-live (V2L) and jump-charge connections, the controller detects a control pilot voltage and a proximity voltage. When the control pilot voltage is 0V, the controller determines whether entry conditions are satisfied indicative of a desire to offload power from the host system to the device. When the entry conditions are satisfied, the proximity or control pilot voltage are modulated to generate a modulated voltage signal, which the controller compares to an expected voltage indicative of the device. Power is offloaded to the device when the modulated voltage signal matches the expected voltage.

The combined battery jumper cable with wrench is configured for use with a vehicle. The combined battery jumper cable with wrench forms an electric termination that attaches a cable to a terminal post of the vehicle battery. The combined battery jumper cable with wrench forms a ratchet that is used to attach an electrical terminal of the vehicle to the terminal post of the vehicle battery. The combined battery jumper cable with wrench includes a working head, a transfer mount, and a motive structure. The transfer mount attaches the motive structure to the working head. The working head is the working element of the tool. The motive structure transfer externally provided energy to the working head through the transfer mount. The motive structure removably attaches to the transfer mount.

A vehicle battery jump starter that is powered by a removable and rechargeable battery pack, such as a battery pack used with various hand-held power tools. The battery pack removably connects to a vehicle battery jump starter and can be selectively used to charge a power boost module within the vehicle battery jump starter. The power boost module includes, for example, a plurality of supercapacitors or lithium polymer battery cells. The power boost module in combination with the battery pack 100 can be used to jump start a vehicle battery.

The present disclosure provides a smart connection device, a jump starter and a battery clamp. The smart connection device includes a power connection terminal coupled to an energy storage module, a load connection terminal coupled to an external load, a switch element, a power supply loop, and a reverse connection detection module. The reverse connection detection module outputs a first control signal to the power supply loop, when the external load is reversely coupled to the load connection terminal. The power supply loop is in a disconnection state and supplies no power to the switch element when it receives the first control signal. The switch element is in an off state when it receives no power supply, to make the power connection terminal and the load connection terminal be in a disconnection state, thereby preventing the energy storage module from providing a discharge output to the external load.

The present disclosure provides a smart connection device, a jump starter and a battery clamp. The smart connection device includes a switch circuit, a drive signal transmission module and a reverse connection detection module. The drive signal transmission module is configured to transmit a drive signal output by a controller to the switch circuit, so as to conduct the switch circuit. The reverse connection detection module is configured to detect a connection state of the external load through a load connection terminal, and output a corresponding control signal to the drive signal transmission module according to a detection result, wherein the control signal is configured to control a transmission of the drive signal by the drive signal transmission module.

An apparatus for jump starting a vehicle includes a handheld booster device comprising a rechargeable battery pack, a control circuit, a power switch, and an output port, wherein the control circuit detects when it is safe to couple the handheld booster device to the vehicle's battery and connects the rechargeable battery pack to the output port thru the power switch; and a jumper cable device comprising a plug and a pair of cables integrated with the plug, the plug being configured to connect to the output port of the handheld booster device in a specific orientation.

A cable connector, a cable clamp, and a method for detecting bridging of car batteries. The cable connector includes a housing and a wiring circuit, wherein the wiring circuit is arranged in the housing and includes a first wiring terminal, a second wiring terminal, and a detection module and voltage absorption module electrically connected between the first wiring terminal and the second wiring terminal, and a voltage absorption module. The voltage absorption module includes a piezoresistor bridged between the first wiring terminal and the second wiring terminal. The detection module includes a first switch circuit and a second switch circuit which are oppositely bridged between the first wiring terminal and the second wiring terminal to be alternatively turned on, wherein the first switch circuit includes a first illumination unit, and the second switch circuit includes a second illumination unit.

A portable charger capable of jump starting a 12 V car battery includes a charger battery, a jump start circuit operatively electrically connected with the charger battery and with an ignition power outlet, and a microcontroller for coordinating safety functions to establish or interrupt the operative electrical connection of the jump start circuit with the ignition power outlet. The ignition power outlet comprises a positive power socket, a negative power socket, a positive sensing socket and a negative sensing socket. The sensing sockets are electrically isolated from the power sockets, and the microcontroller senses voltage across the sensing sockets and is configured to interrupt the operative electrical connection of the jump start circuit to the ignition power outlet until proper voltage is sensed across the sensing sockets.