An old laptop battery no longer holds any charge
Why does my old laptop's battery no longer hold any charge at all?
Written by The CommonFixes team · fact checked by CommonFixes review desk
Last updated
Short answer
Lithium batteries wear out with each charge cycle. After roughly three to five hundred full cycles, usually two to four years, the chemistry can no longer hold much energy. Sometimes it is not that bad and the gauge is just miscalibrated, which is worth checking before spending money. The quickest thing to try first: print a battery report to see the real wear — Open Command Prompt as administrator and run: powercfg /batteryreport. Open the HTML file it names, and compare Design Capacity with Full Charge Capacity. If full charge is under about half of design, the cell is genuinely worn out. On a Mac, hold Option, click the Apple menu, System Information, Power, and look at Cycle Count and Condition. Most people are done in about 15 minutes.
Full walkthrough below: 6 steps for Windows and Mac, rated medium.
Sounds like this
- •It dies the moment you unplug it
- •The percentage jumps from 100 to 5 in seconds
- •Windows shows a 'consider replacing your battery' warning
Why it happens
Lithium batteries wear out with each charge cycle. After roughly three to five hundred full cycles, usually two to four years, the chemistry can no longer hold much energy. Sometimes it is not that bad and the gauge is just miscalibrated, which is worth checking before spending money.
Work through these in order
0% done- 1
Print a battery report to see the real wear
Open Command Prompt as administrator and run: powercfg /batteryreport. Open the HTML file it names, and compare Design Capacity with Full Charge Capacity. If full charge is under about half of design, the cell is genuinely worn out. On a Mac, hold Option, click the Apple menu, System Information, Power, and look at Cycle Count and Condition.
- 2
Recalibrate the gauge if wear looks low
If the report shows the capacity is still healthy, the meter is just lying. Charge to 100 percent, leave it plugged in for two hours, then unplug and use it until it shuts itself off. Leave it off for five hours, then charge uninterrupted to 100. This resets the gauge.
- 3
Reinstall the battery driver
Device Manager, Batteries, right click Microsoft ACPI-Compliant Control Method Battery, Uninstall device, then restart. Windows reinstalls it and re-reads the battery. Harmless, and it fixes a stuck reading.
- 4
Check for a charging limit you forgot about
Lenovo Vantage, MyASUS, Dell Power Manager and similar apps have a Conservation or 60 percent limit mode. If that is on, the battery will never fill, which looks like a dead battery.
- 5
Replace the battery
If wear is real, order a battery for your exact model number from the manufacturer or a supplier such as iFixit. On most laptops it is a ten minute job with a small screwdriver, and iFixit publishes a free step by step guide per model.
- 6
Make the next one last longer
Keep it between 20 and 80 percent where the maker's app allows it, avoid leaving it at 100 percent hot all day, and do not run it flat repeatedly. That routinely doubles usable life.
If none of that worked
A swollen battery, one that makes the trackpad bulge or the case not close, must be replaced immediately and not charged again. Take it to a shop; punctured cells can catch fire.
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Who wrote this and how we checked it
The CommonFixes team
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We are a small group of people who spend our days repairing laptops and desktops for family, friends and small offices. Every guide here starts with a problem someone actually brought to us, and we only write down the steps that put the machine right.
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This guide was last updated on 10 August 2026. If a step no longer matches what you see on screen, tell us on the contact page and we will test it again.
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