Detailed Instructions: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Problem:Short and simple: This charger did not charge my laptop's battery unless the computer was either off or at least in standby mode with the lid closed.It could keep the computer operating while plugged in, but it wouldn't charge my battery. I've seen other reviews with different results, but for me, this thing was pretty much useless.
Solution:
Negative