Given the task definition and input, reply with output. Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

I have purchased three of these adapters and they work well. They will charge a G4 Powerbook while the unit is running. All 3 have worked without problem (sometimes the cord comes loose so you have to check that it is tight). No LED on the connector to indicated charging as with the original Apple adapter. Won't work on the new Intel MacBook or MacBook Pro.
Positive