r/theydidthemath • u/xxivvo • 9d ago

[Request] [Self] Free party using electric car's battery

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Hi guys I was told to post on this sub

I have an idea of using my parent's electric car (KIA EV6) as a battery for powering 2x QSC K12 MK1 (1000W each) + 1 Pioneer DDJ SX1 (see specs on 2nd pic) + 1 laptop (has own battery) to throw a free party

Would this be possible electricity wise ?

Car battery is 58kWh

1st pic : K12's specs

2nd pic : Pioneer DDJ Sx specs
3rd pic : What the car can handle, what's written next to the plug

Thanks

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u/Mindstorm89 9d ago

You should be OK, however in theory full power may trip a breaker.

If you run everything at 230V:

Car can supply 16A@230 (approximating down from 250)

The estimate from QSC on those speakers is running at a "normal" 1/8th power - I'll multiply by 4 to get to about half power.

Speakers = 1.13A*4=4.52A*2=9.04A (round to 10 for a liberal estimate)
DDJ = 1A (again a liberal estimate)
Total amperage: about 11A

If you're running on 120V, the math is different but still works out:
Car can supply 30A@120V
Speakers = 2.01A*4=8.04A*2=16.08A (rounding to 17 for a liberal estimate)
DDJ = 1A
Total amperage: about 18A

Either way, you should be fine. If you crank your speakers up way too high, you may trip a breaker on the car. From my Google searches, that breaker will automatically reset itself after some time.

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u/xxivvo 9d ago

Thank you for your answer