I am building a project that will draw around 300 amps at 12vdc, for about 40-60 minutes then it will rest for a few minutes. For this projects application it will be very impractical to build a dedicated circuit. How can I power this on a standard(American) wall outlet?
I was thinking of using multiple optima yellow top deep cycle batteries hooked up in parallel and having a heavy duty battery charger that will constantly be charging the batteries at around 100-200 amps that way during the rest period the batteries will completely recoup and during the use the constant charging will allow the batteries to last for at least an hour. Will this work?
If I have to build a dedicated circuit, do I have to step up the voltage to 240Vac? If it is necessary to use a dedicated circuit, can you guys please recommend a 120V (or 240V) to 12v high current converter.