Symptoms
- Battery percentage doesn't increase while plugged in
- Charging indicator light doesn't turn on (on models with a MagSafe-style light)
- Message says 'Not Charging' next to the battery icon
- Charging works intermittently depending on how the cable is positioned
Likely causes
- CommonA faulty or damaged charging cableCables are the most common point of failure and can fail internally with no visible sign.
- CommonLint or debris blocking the charging portThis is especially common on USB-C ports carried in bags or pockets.
- CommonA faulty power adapterAdapters can fail even if the cable and Mac are both fine.
- PossibleA software glitch affecting how macOS reports charging statusSometimes the Mac is actually charging despite showing 'Not Charging.'
- PossibleA genuine battery or charging circuit hardware faultThis becomes more likely if multiple known-good cables and adapters don't help.
What to do
- Inspect the charging cable and adapter for visible damage, fraying, or bent connectors.
- Check the charging port on the Mac for lint or debris, and gently clean it with a dry, soft brush or toothpick if needed.
- Try a different known-good cable and adapter if you have access to one.
- Plug directly into a wall outlet rather than a power strip or hub, which can sometimes limit power delivery.
- Restart the Mac while it's plugged in to see if the charging status updates correctly.
- Reset the SMC (System Management Controller) using the steps appropriate for your Mac's chip type (Intel vs. Apple silicon), which often resolves charging detection issues.
- Check System Settings > Battery for any error messages about the battery or charging.
- If charging still fails with a confirmed good cable, adapter, and clean port, the issue likely requires professional repair.
Tools and parts
- Soft brush or toothpick (for cleaning port)
Replacement USB-C or MagSafe charging cable/adapterSearch: “genuine or MFi-certified MacBook charger replacement”
When to call a pro
If a known-good cable, adapter, and clean port still don't fix it, an Apple Store or authorized repair shop can diagnose a battery or charging circuit fault.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.