47000 Watt Magnetizer

[picowatt]

In regards to a small wattage valued resistor being able to deliver a large amount of instantaneous current to a load in a pulsed situation. Of course in this case we are talking about 350 amp cables being able to handle say a quick 1000 amp pulse,due to the fact that the amp rating for cables is continuous.

Tinman,

That was only with regards to dissipation.  It has nothing to do with somehow being "easier" to produce instantaneous versus continuous current.

A lower wattage resistor can handle a VI product for a short period of time that would otherwise cook that resistor if applied continuously.  That discussion was with regard to duty cycle, CVR wattage ratings, and primarily your 85 watts comment in that other thread.  This has little to do with what you are attempting to do and nothing to do with somehow being "easier" to produce instantaneous currents.

Possibly the linked document may be of interest to you:

http://www.oersted.com/magnetizing.PDF

PW

[picowatt]

Tinman,

Do you have any idea what kind of current you are pulling?

If the bulk of that 25 or so volt drop is across your relay contacts and at a large current, I'd be very concerned about the relay contacts welding together.  Be careful.

Have a plan for disconnecting the batteries (or you will find out which part of the circuit is dissipating too much, overheats,  and "fuses" open first).  At the least make sure that all your wiring, relay, and fixture is positioned away from flammable materials so that in the event of something catching fire it won't propagate quickly.  You should also have a fire extinguisher close by.

PW