Question about Acer TravelMate 8200 Notebook
7800 mAh battery that came with computer doesn't hold charge after 2.5 years (understandable). Cannot find much except 6600 mAh for replacement. 2 of those charged, then discharged all the way; then they wouldn't charge back beyond what registered as 11%. Unplug the AC / charger, and comp died -- i.e. battery wasn't charged at all . 3rd replacement 6600 mAh won't even charge all the way up one time. Only registers 11% . Some diagnostic in Ubuntu shows old battery as "old or damaged" with 33% capacity. No such message with the replacement. Can 3 or more replacement batteries all be bad, or is there some known problem with the Acer Travelmate 8200 's charger?
Is the AC adapter the original that came with the laptop or is it a replacement?
Check the label on the laptop (on the bottom of the laptop) for the voltage and current requirements.
Check voltage output of the adapter with a multimeter, this voltage should be slightly higher that the voltage than what is shown on the adapter's label because there is no load on the adapter.
It could be that the current (amps) that the adapter is delivering less power than the laptop's requirements, whilst it can power the laptop it may not be sufficient to charge the battery fully.
Try charging the battery overnight by shutting down the laptop but leaving it connected to the mains. Then boot up the laptop in the morning and check the battery's charge state. If the battery is at or near full capacity, then the problem is a (part) faulty adapter.
Posted on Jan 07, 2009
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