Daily Tech Tip 14: MacBook batteries gradually lose capacity with age and charge cycles. Normal use is expected; the most useful habits are avoiding excessive heat and responding to battery warnings.
Why this matters
A worn battery can reduce runtime, trigger unexpected shutdowns or swell. Software estimates help, but physical condition and real-world behaviour matter too.
Safe steps to try
- Use Optimised Battery Charging when available.
- Keep vents clear and avoid charging on soft furnishings.
- Check Battery Health in macOS and note any service recommendation.
- Use a suitable USB-C or MagSafe charger with enough power for the model.
- Back up the Mac regularly, especially if shutdowns or charging faults begin.
What to avoid
- Do not continue using a MacBook with a raised trackpad or distorted bottom case.
- Do not puncture, press or attempt to flatten a swollen battery.
- Do not assume a new charger will fix every charging fault.
When to stop and get help
Stop charging and arrange inspection if the case separates, the trackpad becomes hard to click, the battery smells unusual or the Mac becomes abnormally hot.
Battery health is about safe condition and dependable runtime, not only the percentage shown in settings.
For model-specific advice, see our MacBook battery repair in Bristol.
This general maintenance guidance cannot diagnose an individual device. Stop using equipment that is swollen, smoking, burning, severely overheated or electrically unsafe.