How can I change the battery health of my Iphone from 84 to 100 battery health percent

Apple won’t replace the battery until it reaches 80% capacity.

Battery Performance Tips:

• iPhone Battery and Performance.
• Maximizing Battery Life.
• About battery usage.
• Check the iPhone battery health and usage.
• Optimized Battery Charging.
• Use Low Power Mode.

Need more help?

• Call Apple Support at 1-800-APLCARE. 📞
• International Support. 🌐
• Contact Apple Support. 📝
• Live chat using Messages. 💬

You can’t.

Battery health is an indicator of normal degradation which occurs w/ use.

It can’t be simply “whipped into shape” with more exercise and a better diet.

A battery replacement should be considered when it drops below 80%.