Battery health

Hello marilou166!

Indeed it is! In fact, 97% is above average.

Apple recommends you to change your battery when the Maximum Capacity reaches 80%. When the time comes, please click Here to go about having the battery replaced.

For more information About the battery usage on your iPhone, iPad, and iPod touch - Apple Support, please click on the link provided.

Please tap on the link to learn more about maximizing the battery performance and lifespan of your iPhone, iPad, or iPod touch.

With iOS 11.3 and later, you can see your battery health and if a battery needs to be replaced. Find out more in iPhone Battery and Performance.

I hope this is helpful. Good Luck!

That it happens is normal.

When it happens may be normal or abnormal.

A duckduckgo search on "maintaining iPhone battery health" will bring up several links to articles explaining how to extend the health and life of an iPhone battery.

This article, from Apple, describes several characteristics of lithium batteries and the care they need to maintain performance over time: iPhone Battery and Performance - Apple Support

Regards,

Barry

Battery Health will decline an average of about 1% a month. That's an average. Some months, it might not decline at all, and then it might drop 2% the next month. This is normal.

You can expect to get about 2 years of use from a new battery before it will need to be replaced.