Contacts storage draining battery

We deeply apologize for the inconvenience you are experiencing

you can try the below to reduce the battery draining :

1- Make sure to close applications in the background, and also turn off Wi-Fi when you stop using it, and reduce the lighting.
2- Optimize the battery through Settings, then Battery, Device Care, then Optimize Now
3- Please make sure that the device is up to date by going to Settings, then Software Update, then Download and Install
4- Activate battery protection through settings, battery, device care, battery, then more battery settings, then battery protection.
5-Activate energy saving
6- Go to Settings, choose Battery, then choose Background usage limits, then choose to put unused applications in sleep mode