If you’re looking to run a portable air compressor from a car battery, there are a few things you’ll need. The first is an air compressor, which you can buy online or at a store. The second is a compatible battery, which you’ll need to find in advance. The third is the charger, which will help to charge the battery and the air compressor. Finally, you’ll need some supplies, such as screws and nails, to attach the air compressor to the car.