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E5440 battery not charging
I have got a e5440 laptop, I noticed yesterday that the battery wasn't charging whereas the computer was plugged. (The ring led around the AC adapter is always on)
I tried to remove the battery, press the "On" button for 30s, put it back, and plug it, the led stay white few seconds and turn off again...
I also tried to check via the Bios menu, the battery health is okay and the AC adapter is recognized.
I read stuff about AC adaptater issue, battery issue or motherboard issue, but I am not sure at all about what to test before buying anything... Please help me
LSUFAN51
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February 17th, 2020 07:00
I'm assuming windows 10 is on the computer...….
I suspect the battery is failing or has failed, most likely needs battery replacement. The AC adapter being detected or saying it's type in BIOS, indicate adapter is working normally, also a good sign DC Jack isn't loose or damage. If the computer is connected to an wall outlet, the battery light operates as follows
Alternately blinking amber light and white light - An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop.
Alternately blinking amber light with steady white light - Temporary battery failure with AC adapter present
Constantly blinking amber light - Fatal battery failure with AC adapter present.
Light off - Battery in full charge mode with AC adapter present.
White light on - Battery in charge mode with AC adapter present.
Battery Status Lights
https://www.dell.com/support/manuals/us/en/04/latitude-e5440-laptop/delllatitudee5440_om-v2/battery-status-lights?guid=guid-b7187258-116a-4cf7-8b00-704729aa7883&lang=en-us
You mentioned Battery Health is Okay in BIOS. What does it really say, Battery Is Performing Normally or Battery is fair ?
Excellent — Battery is operating at maximum capacity.
Good — Battery can charge normally; however, you may notice reduced operating time because long-term battery life is decreasing.
Fair — Battery can charge normally; however, it is near the end of its usable life. It is recommended that you purchase a new battery soon.
Poor — Battery no longer provides sufficient power. It is recommended that you replace this battery.
Battery no longer operates, or battery status cannot be determined. It is recommended that you replace the battery.
Ekheerri
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February 17th, 2020 08:00
Yes, I use windows 10.
There's no blink at all, the battery light is white on for few seconds (2-5 seconds) and then switch off until I plug/unplug my adapter.
The battery health was Good in BIOS.
I forgot to try another wall outlet
@LSUFAN51
LSUFAN51
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February 18th, 2020 08:00
" The battery health was Good in BIOS "
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The battery appears to be in great health. What happen when you tried another wall outlet? The battery start working again? Thanks for the update.
PaulMichaelG
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March 21st, 2020 11:00
Going through the exact same problem but on a 7450. Did you ever figure this out?
EDIT: I'm unsure if the BIOS options would be the same but figured I'd post just in case it helps any. There's an option in BIOS on the E7450 - "Wake on AC Power", that helped me out a bunch. Now all I have to do to turn on the laptop is plug in the charger. From there I can unplug if I want to go portable. I figure the power button or DC is my culprit here since I can't power on the laptop using the power button w/ or w/o AC being connected. Just get a half second on/off white battery indicator light when I plug the charger in and w/ Wake on AC Power that's enough to get it going.