Battery backup decreased suddenly, battery report shows reduced design capacity

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rajanshu
rajanshu Member Posts: 3 New User
edited July 25 in Nitro Gaming

I noticed that my battery backup suddenly droped. After checking checking battery report I found that it's showing huge decrease in it's capacity. I have reset my laptop but it did not helped.

Answers

  • rajanshu
    rajanshu Member Posts: 3 New User

    I have changed the file extension to pdf. Please revert back to .html extension to open the file.
    Please help what action I can take

  • Puraw
    Puraw ACE, Member Posts: 18,141 Trailblazer

    Hi @rajanshu , thanks for sharing your battery report.

    🧪 Based on the details, your battery’s full charge capacity has dropped to ~7,623 mWh from the original 52,976 mWh — that’s roughly 14% of its design capacity, which strongly suggests the battery is near the end of its usable life.

    🔧 Here’s what you can try before deciding on a replacement:

    1. Update Your BIOS Visit the official Acer support page for your model and download BIOS version V1.55, released in October 2024. This may fix inaccurate battery reporting or improve charge behavior if it was limited by older firmware.
    2. Reset the Embedded Controller (EC) After updating BIOS:
      • Shut down the laptop
      • Unplug from power and, if possible, remove the battery
      • Hold the power button for 30 seconds
      • Reconnect and restart
    3. Check if Charging Behavior Improves Sometimes, the EC reset and BIOS update can reinitialize the charge thresholds. But realistically, with less than 20% capacity left, the battery is severely degraded.

    💡 Final option: If these steps don’t help, replacing the battery is the best path forward.

    Let us know how it goes or if you need help locating a compatible replacement battery!

  • Diya1811
    Diya1811 Ally Posts: 881

    Update your AN515-51’s BIOS and Embedded Controller firmware to correct misreported battery capacity. Then, open Task Manager to identify and disable any unnecessary startup apps or background processes that may be draining power.

    Click on "Yes" if it answers your question or Click on "Like" if you find my answer useful