Dell inspiron 6400-runs slow on AC power but not on battery
Hi , i am using dell inspiron 6400 for last 1.5yrs. since last week, system -application responding very slow when A.C. plugged in. my battery is not lasting more than 10mins. but when i remove battery and try , still same problem, applications responding very slow. booting/shutodwn also taking too much time on AC power. but if i boot/shutdown system only on battery power then it behaves normal(fast) and even applications repsonds normal. please help. as i am not able to use my laptop since last week. can't i run laptop only on AC adaptor ?. help needed.
i purchased a new battery from DELL. i formated my hard disk and installed OS again. but still the same problems persists. when i am working on battery, computer is working fine(fast), but when i connect AC power(charger), then the computer immediately becomes slow. applications work but responds very slow. and if i switch of charger, then immediately all open applications run normal. can you please help.,,,
Re: Dell inspiron 6400-runs slow on AC power but not on...
Having an identical issue with DELL Precision M6400. Normal operation on battery and degraded performance on AC, CPU usage on 100 % even Task Manager running on 60 % usage. re-installed the OS and Installed/uninstalled the dell power management utility ( latest drivers,BIOS A09 ect), did not help.
Got DELL to swap out the mother board and graphics card, no changes ( even tried another adaptor from an identical machine).
does the converter board reside on the motherboard or is it a separate componet that can be replaced?
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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.
1. Shut down the system, remove the battery and the Ac adapter from the computer.
2. Press the power on button for 10 seconds
3. Reinsert the battery
4. Power on the computer and as soon as you see the dell logo press the f2 key a couple of time
5. Using the up down arrow keys , go to the option that says battery info. If there is an error message listed kindly post it back
6. Otherwise shut down the computer reconnect the ac.adapter and check if the problem is solved
Also the battery has a diagnostic lights on it , remove the battery from the computer and press the button on the battery a set of lights would glow. If they are steady and come in a series the battery is good , If some lights are missing the battery is bad and may need replacement
your miracle,most laptop batteries have a life span of 4 years tops,but that if you take care of it,but most dont realize over charging kills the cells in your battery,and if you have it plugged up make sure you go into power settings and put it on ac/dc power settings.and if you have it away from home without power,put it on best battery settings,and let the power die all the way down before recharging,that will give it a full charge lasting longer.but as for your battery it might be time for a new one