Battery drain after ios 16.6 ipdate

I have updated my iPhone 13 to ios 16.6 yesterday, I’m seeing severe battery drain since then. Even when I’m not using the device like when I sleep t I’m seeing the battery is down by more than 50% . Not only that , when I’m using the device I saw the battery capacity is down in small chunks , like 2 or 3 point at a time.

Apple please look into this or give me some advice on how I can put a stop to excessive battery drain