3 ms·I think this is exactly what the electric motor does: compress the air if you run low.by ajcarpy2005 14y agoI think this is exactly what the electric motor does: compress the air if you run low.ars 14y agoWait - you want to use a battery, to power a motor, to compress air, to then power another motor?arethuza 14y agoNo - I meant powering a compressor using mains power.