PORTABLE POWER BANK AND BATTERY BOOSTER

摘要

An apparatus for charging and discharging an electrical device in vehicle is provided. The apparatus comprises a switch, first and second power sources, and first and second contactors. The first power source is configured to provide a low voltage. The switch is configured to enable/disable the first power source. The second power source is configured to provide a high voltage for charging the electrical device. The first contactor is operably coupled to the first power source and to the second power source, the first contactor being configured to enable the second power source to provide the high voltage for charging the electrical device in response to the switch enabling the first power source. The second contactor is operably coupled to the first power source and to the second power source, the second contactor being in an open state in response to the switch enabling the first power supply.

主权项

1. A portable power apparatus for charging an electrical device having a rechargeable battery, the apparatus comprising:
at least one rechargeable cell having a cell voltage; input circuitry having a first input and second input, configured to receive a voltage preference setting signal from the electrical device, the voltage preference setting is encoded by a first voltage level and a second voltage level applied to the first input and second input; and output circuitry configured to provide power from the rechargeable cell to the electrical device at one of a plurality of predetermined output voltages selected in response to the voltage preference setting that is different than the cell voltage.