How to draw 4amps from battery’s???


I am working with electromagnet which has a resistance of about 100ohms. I want to put about 4amps through it.

Could this be done with 4x 12v SLA 1.2ah battery’s? Or 6v 4.5ah sla battery’s?

And if so how do I draw 1amp from each battery ?


by Link068
January 27, 2018

If you really want to put 4 amps though 100 ohms, you will need 400 volts and the wire will dissipate 1600 Watts. I see a lot of blue smoke followed by total meltdown. Doing this with your batteries may also display boiling electrolyte, and your sealed lead acid batteries may explode. Let me know when, I want to be at least two counties away.

by mikerogerswsm
January 27, 2018

PS - The plural of battery is batteries. No apostrophe needed.

by mikerogerswsm
January 27, 2018

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