Yes, it's generally okay to charge your iPhone to 80%. This practice, often called "battery health optimization", can help prolong the lifespan of your iPhone's battery.
Here's why:
- Lithium-ion batteries degrade over time: Every time you charge and discharge your battery, it undergoes a tiny bit of wear and tear. This wear and tear is more pronounced when the battery is fully charged or fully discharged.
- 80% charging reduces stress: By stopping the charge at 80%, you minimize the time spent at the most stressful points for the battery.
- Apple's "Optimized Battery Charging": iOS includes a feature that learns your charging habits and automatically stops charging at 80% until shortly before you typically unplug your phone. This helps preserve battery health without sacrificing convenience.
While charging to 80% is generally recommended, it's important to note that:
- Your individual needs may differ: If you frequently use your phone for demanding tasks and need maximum battery life, you might choose to charge to 100%.
- Apple's "Optimized Battery Charging" can be disabled: If you prefer to charge your phone to 100% for specific reasons, you can disable the feature.
Ultimately, the decision of whether to charge your iPhone to 80% or 100% is up to you. However, by understanding the benefits of charging to 80%, you can make an informed decision that helps preserve your battery's lifespan.