Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Weak

I bought this to use with a Coleman Inflate-All Quick Pump so I could inflate bike tires and other things without having to be near a car. It did not produce enough power to even budge the pump, even though the manufacturer claims it will work with a pump or compressor.Make sure the seller will pay for return postage if you buy this. (Northern Tool & Equipment didn't.)