Battery drain

Hello smruse7,

Thank you for reaching out to Apple Support Communities, and we'll be happy to help in any way we can. We understand you're having issues with your battery draining quickly. This article goes over how your iPhone battery chemically ages, and explain its life cycle in more detail: iPhone Battery and Performance - Apple Support

The way the battery ages varies depending on how the iPhone is used and how it's cared for, and there isn't a way to increase the Battery Health percentage after it has decreased. This article goes over how to get the most battery life and performance from your iPhone to help keep your battery in the best shape: Batteries - Maximizing Performance - Apple

"To see what is using the most of your battery, check out the steps here: Check the iPhone battery health and usage - Apple Support

"Review your iPhone battery health

Go to Settings  > Battery, then tap Battery Health & Charging.

iPhone displays information about your battery’s capacity, peak performance, and whether your battery needs to be serviced.

View your battery usage information

Go to Settings  > Battery.

Information about your battery usage and activity appears for the last 24 hours and up to the last 10 days.

• Insights and suggestions: You might see insights about conditions or usage patterns that cause iPhone to consume energy. You might also see suggestions for lowering energy consumption. If a suggestion appears, you can tap it to go to the corresponding setting.
• Last Charged: Indicates how fully the battery was last charged and the time it was disconnected.
• Battery Level graph (in Last 24 Hours): Shows the battery level, charging intervals, and periods when iPhone was in Low Power Mode or the battery was critically low.
• Battery Usage graph (in Last 10 Days): Shows the percentage of battery used each day.
• Activity graph: Shows activity over time, split by whether the screen was on or off.
• Screen On and Screen Off: Shows total activity for the selected time interval, for when the screen was on and when it was off. The Last 10 Days view shows the average per day.
• Battery Usage by App: Shows the proportion of the battery used by each app in the selected time interval.
• Activity by App: Shows the amount of time each app was used in the selected time interval.

Note: To see battery information for a specific hour or day, tap that time interval in the graph. To deselect it, tap outside the graph.

Battery life and charge cycles vary with use and settings. The iPhone battery should be serviced or recycled by Apple or an Apple Authorized Service Provider. See the Battery Service and Recycling website."

We hope this helps.

Cheers!