(adjustable)Power Supply 650watt 54amps for Under $50

My idea: Adjustable power supply -Two cigarette lighter sockets: one for e.g tomtom, one with an usb chargers; Connectors: T-PLUG (RC), XT 60 (RC), Banana female sockets. Ammeter - Voltmeter; 10 amp (100volt); 100 amp (100volt)”

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