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Battery has gone??
I purchased my Latitude E5440 with 9-cell battery more than two years ago, and was very satisfied with the design and production quality. I also took all measures to conserve battery, like restricting charge level.
However, yesterday the battery stopped working, and now the computer only works with connected power adapter. There are several strange symptoms:
- Front panel battery indicator blinks amber permanently.
- Indicator in the taskbar displays normal state: 83% available (plugged in, not charging).
- If I press on the taskbar indicator, the pop up window displays: Battery 1: Not present, Battery 2: 83% and not charging (???).
- Dell Command | Power Manager displays error in Battery 1 Health: Your battery no longer operates and needs to be replaced (Battery 2 - not present).
- Dell SupportAssist executes battery test successfully and displays: Battery - Microsoft ACPI-Compliant Control Method Battery - Passed.
- Hardware test executed with F12 at startup reports that battery is not connected.
- The problem came from blue sky; there was no sensible drop in battery operation time, I could work on battery 3-5 hours depending on load; all tests that I ran before reported battery state as excellent.
At this point, I am pretty sure the battery itself is OK, and real problem is some malfunction in software or maybe in the processor inside the battery. The question is: if something can be done to fix the problem other that replacing battery?
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Posted December 9th, 2016 10:00
Hi Chris, thank you very much for quick answer.
Per your suggestion, I have checked BIOS state of the battery (on startup/F2). General/Battery shows Primary Battery: 83%, Idle, The battery needs to be changed.
This confirms your point that the battery is defective.
However, I still think the battery itself is OK, but some processor element in the battery supplies wrong information.
Is there any way to reset this processor?
Don't you think 2 years and 3 months of savvy use is too short for Dell battery?
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Posted December 9th, 2016 11:00
No idea on resetting the "processor element" ? Personally, I think 18 months life for a consumable battery is good. I do not expect anymore out of them on my laptops.
DELL-Chris M (old account)
#IWork4Dell
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Posted December 9th, 2016 11:00
Understood, thank you.
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Posted February 28th, 2017 10:00
Chris, I have a similar issue.
Laptop will power down when AC power is unplugged. Battery life says it's at 67%, but I can't run the laptop on battery - it HAS to be plugged in. Also, the orange light on the indicator in blinking rapidly. I've never had a battery issue with a laptop before and this one is about 16 months old. Thoughts?
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Posted April 26th, 2017 17:00
I got my latitude PC in 2014, battery issues started in 2015, and packed up in 2016, I got another battery in 2016, December to be precise, but I woke up one day to use it and found a amber light blink continuously, my system says battery needs to be replaced but dell power manager still shows the battery at a excellent health state and at 69% charge, although it has refused to charge since the amber blinks.. Does this mean my new battery is bad or a software issue that is needed to be fixed?
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Posted April 27th, 2017 09:00
:emotion-2:
What is the battery setting on the system? Is it Adaptive, Standard, Express Charged, Primarily AC or Custom? You can check in the BIOS or in Dell Power Manager Application, see image below:
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Posted April 27th, 2017 09:00
Hi Jefak007
Please check status of AC adapter and Battery's health in the BIOS by follow steps below:
1. Power off system.
2. Power on system, quickly start tapping F2 key continuously. You should be in the BIOS. The status of adapter usually listed under the main screen and Battery health listed under the Advanced tab or Battery information.
The adapter should say the adapter type, if it says 'Unknown' or 'None', then it's a issue with the adapter, and most likely needs to replace with a Dell genuine adapter that suitable for the system. Note: Wiggle the adapter's end while checking it in the BIOS. The battery health should say "Excellent",....
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Posted April 28th, 2017 04:00
I always switch but I guess it was adaptive before It happened, then I started to try different options
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Posted April 28th, 2017 09:00
Removing the Battery:
DELL-Chris M
Community Manager
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56891 Posts
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Posted December 9th, 2016 08:00
3 test show battery failure. SupportAssist test must be wrong.
Constantly blinking amber light = Fatal battery failure with AC adapter present
Last test, battery is installed, AC adapter is connected. Power on, press F2. General shows Battery Information. If nothing is listed, the battery is defective.
DELL-Chris M (old account)
#IWork4Dell