Pure Sine Wave
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What gauge wire should I use?
I'm making a battery pack for something that runs off 120vac.
I have a 12v 7ah SLA battery and a 180watt pure sine wave inverter.
What gauge wire should I use to connect all of this? And what about a ground cable? How does that connect to it all?
If I understand correctly, you want to know the size of wire for the battery to supply to the inverter. If this is correct, depending on the distance you are running, it should be no smaller than a 12 if the distance totals 20 feet. The fuse should be no larger than a 20 amp fuse and it should be located at the battery terminal. If you wire the system for the output of the inverter, you really do need a ground wire alomg with the neutral and line for the output of the inverter. All of this should be covered in the instruction sheet for the inverter. The inverter should draw 15 amps to give you the 180 watts at 12 volts.
