The upcoming version of the OS will display a notification whenever an app drains excessive battery within 24 hours (via 9to5Google), irrespective of whether it targets the Android 13 SDK. Google notes the warning will not be shown when an app's foreground service is consuming a lot of battery until it is finished running or the user dismisses the notification — it will only be displayed if the high power consumption continues in the background after that. After the initial message, the warning won't be shown again until at least 24 hours later.
This is good news as sometimes a rogue app can really deplete the battery and that is only spotted when the battery is near dead.
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Android 13 will alert you when an app is draining your phone's battery in the background#
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batterylife 
Name and shame
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