Fixing MacBook Pro Battery Not Charging Randomly
## Direct Answer
To fix a MacBook Pro battery that’s not charging randomly, try resetting the System Management Controller (SMC) and the Power Management Unit (PMU). If that doesn’t work, check for loose connections, update your MacBook Pro’s operating system, and calibrate the battery. In some cases, you may need to replace the battery or the MagSafe adapter.
## Step-by-Step Guide
1. **Reset the SMC**: Shut down your MacBook Pro, locate the following keys: Power button, Command (⌘) + Option (⌥) + Shift (⇧) + Power button. Press and hold these keys while powering on your MacBook Pro. Hold them for 10 seconds, then release. This will reset the SMC.
2. **Check for loose connections**: Ensure the MagSafe adapter is securely connected to both the power source and your MacBook Pro.
3. **Update your MacBook Pro’s operating system**: Go to System Preferences > Software Update to ensure you’re running the latest version of macOS.
4. **Calibrate the battery**: Unplug the power cord and use your MacBook Pro until the battery is completely drained. Then, let it sit for at least 5 hours. Plug in the power cord and charge the battery to 100%. Repeat this process a few times to calibrate the battery.
5. **Run a diagnostic test**: Restart your MacBook Pro and immediately hold down the ‘D’ key. This will run a diagnostic test on your MacBook Pro’s hardware, including the battery.
## FAQ
– **Q: Why is my MacBook Pro’s battery not charging?**
A: The issue could be due to a faulty battery, loose connections, outdated software, or a malfunctioning SMC or PMU.
– **Q: How often should I calibrate my MacBook Pro’s battery?**
A: It’s recommended to calibrate your MacBook Pro’s battery every 3-6 months to ensure it’s functioning properly.
– **Q: Can I replace the battery myself?**
A: While it’s possible to replace the battery yourself, it’s recommended to have a professional do it to avoid any potential damage to your MacBook Pro.
– **Q: How long does a MacBook Pro battery typically last?**
A: The lifespan of a MacBook Pro battery varies, but on average, it can last around 3-5 years or up to 1,000 charge cycles.
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