-- Posted by rapsody at 5:15 am on Sep. 15, 2008 On my laptop, my power supply got screwed up. When I plug in the charger, it doesn't charge the battery it actually decreases the battery. When it does charge, it'll go to 100% then decrease the battery, and when it gets to 1%, it alternates from 1% to 2% and eventually shuts off. I even try to charge the laptop while it's off, and nothing happens. Do I replace the battery, the charger, or the whole power supply, and where can I send my laptop to replace the power supply? -- Posted by marshmellowman at 5:18 am on Sep. 15, 2008 This is most likely the fault of the battery and not the charger. This happens when people don't properly run their laptops through the charge cycles recommended. As long as the laptop can see that there's a battery there it means that there should be no hardware fault with the laptop. This happens after long usage of laptops as well, because the batteries wear out and lose their charge. Unfortunately there's nothing much you can do apart from replace the battery. This might be an expensive solution depending on the model of your laptop, so it might just be worthwhile upgrading your laptop and getting a new one if it costs more than $200. -- Posted by silverrose42 at 5:19 am on Sep. 15, 2008 Best buy should be able to fix that for you.