Yes, 89% battery health after one year is generally considered good.
According to the reference provided, if your battery health is at 89% and your iPhone indicates that it's "supporting peak performance" (or similar wording), then your battery is still performing as well as a new battery. This means that the battery is not limiting the phone's performance.
Understanding Battery Health
Battery health is a measure of the remaining capacity of your device's battery compared to when it was new. Over time and with usage, all batteries degrade, and their maximum capacity decreases.
Here's a breakdown:
- 100%: This is the initial capacity of a new battery.
- 80-99%: This range is generally considered normal after a year of use. The phone should still perform optimally if it's within this range.
- Below 80%: This is when your device might start to experience performance issues and battery life may be noticeably reduced. It is also usually when the device will no longer support peak performance.
Key Takeaways
- Peak Performance: As noted in the reference, if your phone states it's "supporting peak performance" at 89% battery health, your phone is operating optimally.
- No Need for Immediate Replacement: There is no immediate need to replace your battery if the peak performance is still supported.
Practical Tips to Preserve Battery Health
While battery degradation is inevitable, you can take steps to slow it down:
- Avoid extreme temperatures: Don't expose your device to very hot or cold environments.
- Use the recommended charger: Using the charger that came with the phone will protect the battery.
- Keep your device updated: Software updates usually contain enhancements that optimize battery usage.
- Avoid overcharging: While modern devices have safeguards, try not to leave your device plugged in for long periods once it reaches 100%.
Conclusion
Having 89% battery health after one year is considered good, especially if your device still supports peak performance as described in the provided reference. This indicates that your phone's battery is not limiting performance.