Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Absolute junk

Sorry, folks, this is a waste of money. The threads on the positive terminal screw cap stripped the second time I hand tightened it. Looks like the threads were cut in really thin copper foil. Maybe if you're going to attach a terminal lug once and never touch it again it will work, but be very careful not to tighten the screw cap very much.