Greetings Fatheen,
It's very important to ensure that the battery is working as expected on your new AirPods Pro. We'd like to provide you with a few steps that can assist you with resolving this issue or that can help with further isolating this behavior:
- Be sure your iPhone is running the latest software version. Completing this step ensures that your device has the latest fixes. Secure your data with a backup before proceeding: Update iOS on iPhone
2. Verify that your AirPods have the latest firmware version: About firmware updates for AirPods
3. Reset Your AirPods Pro: How to reset your AirPods and AirPods Pro
Also, "here's what you can expect with AirPods Pro (2nd generation)
- With multiple charges in your case, you get up to 30 hours of listening time,1 or up to 24 hours of talk time.
- Your AirPods Pro (2nd generation) can get up to 6 hours of listening time (up to 5.5 hours with Spatial Audio and Head Tracking enabled)3 or up to 4.5 hours of talk time on a single charge.
- If you charge your AirPods Pro (2nd generation) for 5 minutes in their case, you get around 1 hour of listening time5 or around 1 hour of talk time."
More details here: Charge your AirPods and learn about battery life
We hope this helps.
Take care.