Acer Aspire 3680

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I cannot tell you the exact reason why but I can tell you what I did to fix it. It was not any of the above. I deal with laptops all the time and I knew this one had a good charger. I even tried several. I happened to notice that sometimes it would charge with one brand charger and sometimes another but I finally found one that always worked. The reason it worked was that it put out a constant 20VDC @ 6.0A instead of the normal 19VDC @ 2.0A that is supplied by most chargers. I am not going to "advise" anyone else to try this but if you buy a new charger you will most likely see that instead of the normal 19VDC it will have a "spread" of 19V to 23V or so. Any of these chargers will probably work not because yours was "bad". I tested several with voltmeters that all said 19V but they all worked erratically sometimes yes, sometimes no. In my opinion, there is either a design flaw or bad component in the on-board charging circuit. It will ONLY allow power to come in when certain conditions are met and apparently when it gets a bit "off" it will only work with an input that is greater than what is normally needed. Bottom line, if you get a replacement charger, I advise you get one that will; supply more than the minimum of 19VDC as required by the original. It would be interesting to know if anyone else has checked their old power supply to see if it was actually good.

This has happened to my laptop too. It turned out to be the AC adapter/power cord. If you have a computer repair store near you you can take the cord and they might repair it for you. Also to make sure that it is power cord the computer repair shop can test it to make sure it is working correctly. It costs me less than $20 to get it fixed. If not you may have to order a new power cord.

My daughters laptop was doing the same thing. No power indicator light or battery wasnt charging, but the charger was putting out ok. Found on the laptop were the power adapter plugs in the center
plug pin was broke off in the plug of the adapter making it look like a new syle special plug, Had to change the female recept. on the back of the computer.

Check to make sure that the adapter (where it plugs into the back of your computer) is not loose. I know that I just had to replace mine due to the saudering coming loose. If when you plut it in and you can move it around and there is play to it, then you need to have the "charging port" replaced with a new one. Usally this means taking it into a computer service to have them take apart the lap top and fit a new one.