Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Awful! NO STARS rating.

These things ended up not working! You have to leave it home to keep it charged.. kind of defeats the purpose of it doesn't it! Stupid engineering. If you car dies at home, it's ok, but darned if it didn't work when we needed it.. and we had TWO of them! Neither worked so we sent them to the B&D; service center only to receive a check from them!We bought two, one for each car, but it doesn't fit in either glove box (Ugh). This means you have to find a secure place in your trunk to hold it. It's pretty heavy and could be a potential projectile if in an accident.