I have looked at the post here: http://en.community.dell.com/support-forums/laptop/f/3518/t/19469061.aspx and while similar, those resolutions do not fix my problem. It has been an issue since I first purchased the laptop, and I have had support remote in and look at things on multiple occasions, but because it only charges sometimes, was never able to replicate when it was plugged in and would not charge. At that time, it was a backup laptop so was not used frequently. I am now using it more often, and this issue is becoming extremely annoying...
Having used it for a while now, I have been able to identify exactly what is happening, can replicate it consistently, and am looking for some resolution.
There has got to be some setting somewhere, maybe BIOS, or something, that causes it to stop charging when it reaches 100%. I haven't found that yet, can anyone help?
The BIOS does correctly identify my A/C adapter. I have not checked if it does when it is in the discharge state though. I will check and post that result.
Update - When it switched over to discharging, I shut it down, rebooted and checked the BIOS. That still correctly identified the A/C adapter. When escaping out and booting into Windows, at first while Windows was still starting up, the charging icon came up for a few seconds. By the time I could actually do something, it had switched back and shows it discharging.
I shut it down into hibernate mode, booted back up and it was back to charging. So this confirms what I have been seeing. Hibernate mode will magically switch it to charge the battery...
I have a similar problem, if not the same. My 1747 charges with charging LED on. After some time the LED goed black, still Windows says battery is charging and the percentage rises. If I disconnect the charger, the screen backlight brightness changes as expected and the "charging" status disappears. If I reconnect the charger, the LED blinks like expected but tsay black after that, with again Windows saying taht the battery is charging and the level rises. At 100% charging ends and the battery starts discharging, even with the charger connected. In this state the charger won't be recognized anymore, no changing brightness on disconnect/reconnect, no blinking of the white charging LED. The use of battery instead of power supplied by the charger will continue until the orange LED comes on, battery is depleted, system suspends to disk, orange LED stays on, and still no charging. If I restart the system then, it will start charging, again until the battery is fully charged, the game begins again. I've tried this with three different chargers (all original Dell) and three different batteries (also all original Dell, I own a 1745 too).
Another symptom: If I remove the battery with the charger connected, even charging the battery, the system will shut down like it would when the battery is removed while no charger is attached.
The charger with correct type is always recognized in the BIOS. Even if I tell Windows to restart and go into the BIOS in the state where the battery discharges even with charger connected, the charger and its type is still recognized! Disconnect it in BIOS --> none, reconnect it ---> changes to "130W" like it should. But still, no blinking of the white charge LED and no change in brightness, and no charging.
I don't know what to do anymore. I need help with that as there is no reliable way to use the notebook over a longer period of time.
Thank you for all the trouble shooting steps done and the detailed description of the issue. I request you try these two steps to determine the issue.
If the system turns and works fine for a while with both battery and Ac adapter connected, I suggest that you flash BIOS to the latest version as this step needs uninterrupted power supply. Please find the link below:
Do not use the system till it restarts and comes up to the desktop.
In case the issue persists after flashing BIOS or if you are unable to flash BIOS, please run diagnostics on the hardware components of the system. Follow the steps given in the link below for the same:
Reply with the status of the test to assist you further.
Hi! Thanks for your reply. The BIOS is already version A14, so it's the newest. I even reflashed this version in case something went wrong the first time, no change. The diagnostics run without any error at all, I tried that already too.