I have a Dell Latitude D510 that will boot into windows on a charged battery. The laptop/ac adapter does not seem to re-charge the battery. I have tried 3 AC adapters. I have swapped the battery into another laptop and the battery will get recharged. When I leave the AC power plugged into the laptop and remove the battery supposedly to run on just FULL ac power I get nothing, laptop will not boot. I am thinking it is the AC chip/card that is attached to the motherboard. Does anyone else have experience with a similar issue and can point me to a reliable site with spare parts. I realize in order to fix this I may have to strip the laptop down to the motherboard to replace the card. Also is it even replaceable? I have read in some places the AC card is soldered to the mobo. Thanks for any info!