Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Q: I have had the charger for more than two years. It charges AA batteries just fine, but has a huge problem securing smaller AAA batteries. To charge the smaller batteries you need to flip down the little button at the positive end. In the beginning one of the four AAA batteries would pop up, and now three out of the four won't hold. The problem is the flip mechanism became loose, and any horizontal pressure would push the buttons back up. What I have to do now is using duct tape and a segment of crayon, apply the crayon on the buttons, and wrap the tape around. You know how painful that is.

A: Negative
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Q: I have been buying Hi-Tec for years. When I found the Altitude IV I fell in love instantly. This shoe fits great, has little break in time and still holds its sturdiness as it ages. Well recomended.

A: Positive
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Q: I am a country and western fan in Memphis. This new Sony product is great! I meam really great. I don't have to remember songs I hear on the radio anymore. Definitely worth the $19.99 I paid. Get one!

A:
Positive
****