I have an XPS M1530. It was displaying the message about battery can continue to charge but is reaching the end of its usable life - for about a year. I never operate the laptop without the AC adapter. I went to turn it on and it turned on and then immediately shut off. Then the AC light turned off. Now if I unplug the AC adapter from the computer, unplug the AC adapter from the wall and plug it back in the light will come on. Then as soon as I plug the AC adapter into the laptop the light goes off. Laptop does nothing/completely dead. I have 2 Dell AC adapters and both behave the same. I have tried it with and without the battery and same issue. Do you think a new battery will fix it? Any other suggestions? Thanks.