I'm experiencing a significant battery drain issue with my iQOO 9SE, particularly in standby mode. The battery life is alarmingly short:

• Fully charged at 7:30 AM
• Drops to 40% by 2:00 PM
• Further decreases to 10% by 6:00 PM

This rapid drain occurs even when the phone is mostly idle. Has anyone else encountered this problem or found a solution? Any advice or recommendations would be greatly appreciated.

If you've successfully resolved a similar issue or have troubleshooting steps to suggest, please share your insights. Thank you!