Open the Settings app
Tap Battery
Check Battery Usage for recent battery performance
Go to Battery Health if your iPad model and iPadOS version support it
Look for Maximum Capacity and Peak Performance Capability
If Battery Health is not available, check battery condition through Apple Support or diagnostics
Use a Mac or PC with a third-party tool if you want more detailed battery data
Contact Apple Support if the battery seems to drain unusually fast or the iPad shuts down unexpectedly