Not Charging
Apple MacBook
Severity:What Does This Error Mean?
Check the charging cable for damage and try a different USB-C port on the MacBook — Apple Silicon MacBooks charge from any USB-C port but some ports may have debris or damage. If the MagSafe or USB-C connector is warm or discoloured, the cable is likely faulty. Resetting the SMC (on Intel MacBooks) often resolves a charging fault that appeared suddenly with no hardware damage.
Affected Models
- MacBook Air (all models)
- MacBook Pro (all models)
- MacBook 12-inch (2015–2019)
Common Causes
- Faulty or damaged USB-C or MagSafe charging cable
- Debris or lint blocking the USB-C port preventing proper contact
- SMC fault on Intel MacBooks causing incorrect charge management
- Battery worn out and no longer accepting charge
- Third-party charger not providing sufficient wattage for the MacBook model
- macOS battery charge limit feature — some MacBooks stop at 80% by design
How to Fix It
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Try a different USB-C cable and charger, or a different MagSafe adapter. Confirm the charger wattage is correct for your MacBook model — a 30W charger will not charge a MacBook Pro 16-inch at full speed.
Apple USB-C cables and MagSafe adapters are common failure points. A third-party USB-C charger must support USB Power Delivery (USB-PD) and the correct wattage.
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Inspect and clean the USB-C port with a dry wooden toothpick or a soft dry brush. Lint and debris are the most common cause of no-charge on USB-C MacBooks.
Do not use metal tools or compressed air at close range — these can damage the port pins. A wooden or plastic toothpick is safe for removing compacted lint.
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Reset the SMC (Intel MacBooks only). Hold Shift + Control + Option on the left side of the keyboard and the Power button simultaneously for 10 seconds, release, then press Power to start.
The SMC controls charging behaviour on Intel MacBooks. Apple Silicon MacBooks (M1 and later) do not have a separate SMC — a force restart (hold power 10 seconds) is the equivalent step.
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Check System Settings > Battery to see if Optimised Battery Charging or Charge Limit is enabled. When enabled, macOS intentionally stops charging at 80% to extend battery lifespan.
This is a feature, not a fault. If you need a full charge, disable Charge Limit in Battery settings temporarily.
Frequently Asked Questions
MacBook battery percentage is stuck and not increasing — what to do?
A battery percentage that does not move despite being connected often indicates a battery calibration issue or a failing battery. Try a full discharge (let it run flat) then a full charge to recalibrate. If the percentage still does not move or the battery health shows Poor in System Settings, the battery needs replacement.