Is an overnight discharge of 20% to 25% on the Smart Battery Case normal?

[iMore Question]

I just bought a new Smart Battery Case yesterday. After charging both, I unplugged the phone and went to bed to wake up this morning with about 75% on the case.

 

[Just_Me_D]

If that battery case connects via Bluetooth only then yes, it's possible to use a percentage of the battery overnight, in my opinion, but I can't say for certain.

 

[Garz]

If that battery case connects via Bluetooth only then yes, it's possible to use a percentage of the battery overnight, in my opinion, but I can't say for certain.

It connects via lighting port. And to answer the OP, 20-25% drain seems excessive overnight.

 

[Quang Tran3]

That's high. My 6s case drops around 6%. My 7 drops 5%. What does your phone battery usage show? What apps create the drainage?