Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not Happy

Takes longer and longer to charge batteries, and I say charge with a wink since the batteries act like a third of a normal batteries time. I bought Rayovac so it would be name brand and be "reliable" right? You can only charge one 9 volt at a time, is that normal? what a waste of 12 hours to charge.I will go with a different brand, Im just annoyed because I bought a bunch of the rechargable batteries to go with this one, (also name brand Rayovac) why does it take SOOOOO long to charge, and then have such a whimy weak charge? Next time I go with a different brand.