A power control method comprises: obtaining voltage information of each input circuit; generating a first control signal based on the voltage information and a bus voltage value; converting a voltage of each input circuit into a bus voltage based on the first control signal; obtaining load information; generating a second control signal based on the load information and the bus voltage value; converting the bus voltage into a load voltage based on the second control signal; and outputting the load voltage.

A power generation system for a mobile device. The power generation system includes a combustion engine. The combustion engine serves as a power generator for the mobile device, with the combustion engine being located on a trailer. The power generation system also includes a power module. The power module comprises both an ultra-capacitor and a lithium-based battery; Preferably, the ultra-capacitor comprises a series, or bank, of super capacitors. Likewise, the battery comprises a series of lithium batteries. Preferably, the super capacitors are in electrical communication with an alternator of a truck. The power module provides power to start the combustion engine used to drive the mobile device. The mobile device may be a refrigeration system, or may be heaters, blowers, lights or other electrical items that may be carried on the trailer.

Disclosed are a jumper cable, a starting power supply and a jump start device. The jumper cable includes first and second input terminals respectively configured to be connected with positive and negative electrodes of a starting power supply; first and second clamps respectively configured to be clamped to positive and negative electrodes of a vehicle battery; the second input terminal and the second clamp are electrically connected; a switching device, wherein the first input terminal and the first clamp are electrically connected through the switching device; and a non-MCU controlling circuit electrically connected with a controlling terminal of the switching device, configured to control the switching device to be switched on when the clamps are properly connected to the electrodes of the vehicle battery, and configured to not control the switching device to be switched on when the clamps are reversely connected to the electrodes of the vehicle battery.

Detachable auxiliary power systems are disclosed. In some embodiments, the power system comprises a housing with a cavity, and a detachable portion configured to be received into the cavity. The detachable portion includes a power source such as a rechargeable battery, and may include additional electrical circuits to manage the charge and discharge of the battery. The housing includes a cable for electrically connecting the housing to an external electrical system, such as a vehicle electrical system. When the detachable portion is inserted into the housing, it is electrically connected to the cable, and so able to be charged from the external electrical system, and selectively provide power from the power source to the external electrical system, such as for jump-starting a vehicle.

The present invention relates generally to the field of battery charging, jump-start or battery assist devices. More specifically, the present invention relates to a vehicle or equipment battery charging devices that have a housing with a control panel, at least one charging port that can receive at least one cordless battery pack, an internal electric motor, a positive jumper cable and a negative jumper cable. During use, the at least one battery pack can be attached to the charging port such that the electric motor is powered and can charge a battery once the positive and negative jumper cables have been connected to the battery.

A battery assembly device for a battery jump starting device. The battery assembly is configured to maximize electrical conductivity from a battery pack of the battery jump starting device to a battery to be recharged.

The utility model refers to an automobile start-up adapter, wherein it comprises a shell and a circuit board provided inside the shell. The shell is provided with an input terminal for electrically connecting with an output terminal of a lithium battery of a power tool and an output terminal for electrically connecting with a clamp. The input terminal and the output terminal are communicated through a circuit board, and a voltage identification circuit and a voltage conversion circuit are provided on the circuit board. The automobile start-up adapter of the utility model can use the lithium battery of the hand-held electric tool to supply power for the emergency start-up of the automobile.

Disclosed is a transport refrigeration system including: an engine that is dedicated to the transport refrigeration system; a primary battery that is dedicated to the transport refrigeration system, the primary battery being electrically connected to the engine; and a jumper battery electrically connected to the primary battery, the jumper battery configured to automatically boost the primary battery when the primary battery fails to start the engine.

Provided is a battery charging system for charging an internal battery of a jump starter device, including a universal serial bus (USB) connector for receiving power from a direct-current (DC) port of a vehicle, a voltage detection circuit configured to detect a voltage of a vehicle battery, and a USB driver configured to control charging power from the USB connector to the internal battery of the jump starter device based at least in part on the detected voltage of the vehicle battery.

A rechargeable battery jump starting device with a dual battery diode bridge system. The dual battery diode bridge, for example, is configured to protect against a back-charge to a first 12V battery and/or a second 12V battery after a vehicle has been jump charged to prevent damage thereto.