Vostro 1500 Flashing Blue Charging LED

Dell Vostro 1500 has worked well for 4 years. I had a local "Dell Certified Shop" replace my HDD because of a clicking sound. The 5600 Mwh battery (original) would not hold a charge so he replaced it too. The new battery a 5200 Mwh battery would not charge past 99% and the blue charge LED would flash constantly. Dell technician said he also flashed the BIOS when he did all the repairs to the laptop and that the flashing light would likely subside eventually. It has not. I've replaced the battery myself with a 9-cell Dell battery. Once the battery charges to 100% the light switches from constant on to flashing blue again. I have discharged the battery fully and remove it and the A/C power & pushed the start button to drain all power from the laptop. I have let it sit for an hour with no power on it at all. NOTHING WORKS! What can be done to stop the flashing? I do know that while the blue light is flashing a trickle charge is connected to the battery because the battery becomes warm. When I check the system in the morning the battery is warm as if it has been on charge all night. The Battery and system show a 100% charge. Whether the laptop is running or not once charged the Blue light flashes continually when connected to A/C power. What to do???

 

Either you have a problem with the motherboard, defective AC adapter or your battery is defective. Make sure you use a Dell battery as Dell laptops are very picky about generic and aftermarket batteries. I would get the diagnostics CD and run diags on the motherboard.

Call the technician back for another visit.

 

Call the technician back for another visit.
DON'T THINK SO!
He has replace my HDD twice. each time they both still clicked. When I swiped my debit card to pay for the repairs (in advance) the bank informed me two hours later that my card was hijacked to the tune of over $4000.00. The card I used was a private card and was last used months before. So these guys are far less than trustworthy.
Motherboard tests okay. I have two other dell laptops and the same holds true with any A/C adapter.