On the Hells Canyon Rally ride I had to use the air compressor & a can of Tire Slime. We had stopped at a photo point & a group of other rider also stopped. Then my son over heard one of them saying that one of there bikes had a low tire. My son asked me if I had brought my air compressor & I had. We hooked it up to the woman's rear tire, but it would only pump up to 30 psi. After further investigation it was discovered that there was a hole in the tire. Then I got out my tire Slime and we put that into the tire and than started filling it up with the air compressor & when it reached 40psi we shut it off, they thanked us & offered to pay for the can of Slime but I told them no and away they went.
PS: The next day I seen them in town at the Rally on Main street & the woman insisted on buying me & my son a drink.
PSS: The battery powered air compressor worked Great.