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May 7th, 2025 11:19
The battery is discharging very low when is on the AC but is not charging
I have a question regarding my laptop. Let's say that I set up my battery to run on my battery within range 50-60%. When is on AC and reaches 60% in HWMonitor shows me that my laptop is on AC, not charging. The Dell Power Manager app says the same thing, plugged in, not charging.
Watching a movie within this range and my laptop is plugged in the battery is running low up to 50% in 1h and a half. If is not plugged in within the same range my battery is running low up to 50% in 45 minutes.
I don't understand why.
Thanks
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DELL-Jesse L
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May 13th, 2025 10:06
Update the to the current bios to see if that will resolve the issue.
To receive assistance from Dell chat support, they need to verify the warranty status and ownership. Then you must troubleshoot with them. Click the "Get Help Now" icon on the right to start a live chat session. If already out of warranty, click here for the Dell out of warranty offering.
Alex_Adrian
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May 13th, 2025 10:24
@DELL-Jesse L
My laptop has the latest updated to the BIOS and the warranty status is expired
ejn63
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May 13th, 2025 14:00
What model system? And does the system recognize the AC adapter? F2 at powerup to check.
Alex_Adrian
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May 14th, 2025 06:18
It's a dell vostro 3490 bought in 2020. Yes, the AC adaptor is recognized.
(edited)
ejn63
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May 14th, 2025 10:19
Replace the battery.
Alex_Adrian
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May 14th, 2025 10:22
Yes, the battery is new
ejn63
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May 14th, 2025 10:34
OEM, or third party?
Alex_Adrian
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May 14th, 2025 10:41
It's OEM. I don't believe that the issue is with the battery. Fully charged, from 100% to 30%, the battery runs low in 3 hours. So it's ok. Maybe the whole behaviour is ok and now I've noticed that
ejn63
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May 14th, 2025 10:58
Does the system behave similarly when powered off and charging?
Alex_Adrian
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May 14th, 2025 11:13
What do you mean? If I checked how long it takes the battery to run low when the laptop is turned off?
I haven't checked
ejn63
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May 14th, 2025 12:40
No, the question is, does the battery charge from that percentage when the system is powered off?
Alex_Adrian
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May 14th, 2025 12:42
No, it doesn't charge
ejn63
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May 14th, 2025 12:43
That would be a hardware issue - if you know the battery and adapter are both OK, the problem is with the system board.
Alex_Adrian
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May 14th, 2025 12:46
Why do you think that? When the power is off and the AC adapter is plugged in, should the battery charge?
ejn63
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May 14th, 2025 12:48
It should. If it behaves the same way powered up or not, the problem is the mainboard charge circuit.