Brian.roberts
New
United States
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That's not how electricity works. Wattage is a function of voltage and amperage. W=VA. A 12v car outlet with a 15A fuse will support a 180watts before blowing a fuse. And you're not going to melt any wires in your car unless you installed them yourself. The fuse is literally designed to keep this from happening. If the wire was thin enough to melt at that amperage, they'd put a smaller fuse in there.
So the DJI pro charger is 100 watts, under the 180 you'll get from the 15 amp circuit at 12v. Of course there are losses in an inverter. The 100 watt charger will pull about 0.9amps at 110 v BTW.
And the size wire needed depends WAY more on amperage draw than distance, especially witb a copper conductor. Distance DOES matter, but less than temperature even, so don't even worry about it. Assuming 12v, and THHN insulation, a 12ga wire would be fine for a 30 amp draw (360 watts at 12v) according to NEC which is always my wiring bible even when it doesn't apply. |
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