Originally Posted by
ShirlinAZ
I would NOT recommend this. A TV requires very little power, so as long as the car engine is running it would be fine. A sewing machine has a motor which takes a great deal more power. Your car's alternator may not keep up with charging the battery even though the engine is running.
I would ask about this. If it were a small sewing machine, I don't think it would take a lot of power. A TV takes power constantly, whereas a sewing machine takes power only when the pedal is pushed. So it's an on again and off again thing. Something to think about.