MNRon wrote:
3 - Magnum 3012 will support heavy loads well, but extended drawing hundreds of amps WILL heat things up and shouldn't be done. A few minutes for a microwave, hair dryer, etc isn't an issue. The Magnum will easily start my AC (without soft-starts) but you pull hundreds of Amps and cabling etc heat up if you do that very long.
This was my experience also in my lead -acid 12v days.
My cabling was all 4/0, big beefy connectors, no shortcuts on any of it. But after maybe 3-5 minutes of microwave use, or especially a/c, things started getting hot, including the batteries themselves. That was the time I decided to up the voltage so I didn't have hundreds of amps to deal with.
