I have a device that runs on 12-48v DC, drawing up to 5A at 12v at bootup. This then settles down to 2-3A for normal operation. I need to run this device from my 12v vehicle battery – either via a cigarette lighter plug or direct battery connection... (Budget: £20 - £250 GBP, Jobs: Altium Designer, Automotive Engineering, Bill of Materials (BOM) Analysis, Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, PCB Layout)