How frequently do power cords go bad but the light

  Etnman 00:44 02 Mar 2019

How often do laptop chargers,go bad, but continue to ligjt up as if,they are,still working?

  alanrwood 09:48 02 Mar 2019

Quite often as the light only indicates that mains power is applied not that the adaptor is supplying power to the computer. Most adaptors fail due to the wires in the low voltage side breaking due to continual flexing. Thus no output but the light still shows.

  KEITH 1955 10:33 02 Mar 2019

Another reason why adapters for all sorts of products fail is because manufactures don't put air vent slots in the adaptors. 240 volts down to a lower voltage produces heat and with no vent slots , over a period of time the internal wires go brittle. The proof is get hold of any adaptor during charging and it will be very warm or hot. As soon as the adaptor has done its job it goes cold.

  Fruit Bat /\0/\ 14:13 02 Mar 2019

You ned to test the output voltage at the jack plug using a volt meter.

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