My galaxy note 10 lite has battery drainage issue. While screen is off & flight mode is on still it will consume about 8% in whole night. Please help me if anyone has solution.

I just bought galaxy note 10 lite. It has battery issues previously I was using A71 which was prettty good. Main problem with battery is when I don't use it. When aeroplane mode is on then it consume 2% in whole night but when aeroplane mode is on & ...