I left the laptop in sleep mode in a carry case (with half empty battery) after unplugging the charger for 5-6 hours. It then won't turn on so I thought it was a flat battery. After fully charge the battery it still won't turn on with either battery only, AC only or both sources. The Numlock, Capslock and Scrolllock LEDs turn briefly on for a couple of seconds then off when the Power button is pressed. There is no screen activity, no sound of anything moving inside the laptop. However the charging circuit seems working as normal.
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Re: Dell Inspiron 6400 won't turn on
When lithium batteries discharge past 1.5 volts they can cause havock. Take the battery out of the system (if this is the one that discharged I would throw it away), disconnect the AC and try turning on the system. Of course it won't come on but If there's been a clitch, this tends to clear the system. Then put in a fresh battery and connect the AC. If this doesn't work then buy an external box for your present hard drive and connect it to your new computer to get your data.
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The user manual will supply an in-depth explanation of the led-indicators, aswell as there are normally small icons assigned to each light, sometimes engraved in the plastics, normal lights to be active at average usage are the Power led indicator, will glow as long as device is turned on, the Wireless led indicator will glow when the wireless network module is active, the CPU led indicator will flash occasionally when system is idle, and rapidly when system is active under load, and the Battery led indicator will be active when device is running on battery power. When device goes into sleep or hibernate mode the sleep led indicator might continuously glow or slowly switch on & off varying between systems.
Well often batteries from 3rd party manufacturer do not work in some laptops, see even the batteries have a "Chip" in them identifying them. Also sometimes these batteries are just no-good. or arrive flat, too flat to be charged up via the supplied charger. Anyway hopefully none of that applies and this will work. Now Turn PC OFF, put battery in unit. Now plug in wall unit, then plug into the PC, now leave the PC totally alone for at least 3 hours. Now the unit should work. Now how we tell where the problem lies is like this, Turn OFF, take out battery, now plug in the wall adapter, now the PC should work Fine like this. Now remove wall adapter, and insert the battery, the unit should go on this.. ONLY of course if charged. Now if when plugged in there are problems, it is more than likely, that indeed the battery is faulty, in some way.
These links below detail what steps to take to remedy any situation. The 2nd link is great.
1. Reseat the battery. 2. Remove All External Components 3. Check the battery connectors on the battery and the system. Examine the connector on the battery and the system. Make sure that there is no physical damage and that it is clear of debris. 4. Remove All External Components 5. Try a known-good battery in the system, if available.
u r very correect its the time for new 1 to be bought.
u can get the new 1 from radio shack websites.
and also dont try to use that faulty charger again as it can possibly blow the laptop electrical parts internally due to any over power short circuit.