XS Max Smart Battery Case drain without using?

[rossyrose321]

I have a XS Max Smart Battery Case, I noticed if I full charge it to 100% then I leave it there and not use it on my iPhone XS Max for a week or two. When I use it and put on my iPhone after a week or two, I noticed it drain a bit till like 80-85% charge after left it for a week or two without using it.

Does anyone has the similar situation? Not sure is it very common but I won't expect it drain that much, would have thought maybe still have 95% charge since it's just a week or two without using.

 

[parker5011]

I have a XS Max Smart Battery Case, I noticed if I full charge it to 100% then I leave it there and not use it on my iPhone XS Max for a week or two. When I use it and put on my iPhone after a week or two, I noticed it drain a bit till like 80-85% charge after left it for a week or two without using it.

Does anyone has the similar situation? Not sure is it very common but I won't expect it drain that much, would have thought maybe still have 95% charge since it's just a week or two without using.

If it’s a week or 2 that doesn’t sound too bad. I used to use mophie cases on my other iPhones and after 2 weeks it would be down about that as well.

 

[Tdosthp]

I have a battery case for the 8 and XS. The 8 battery case holds a charge much better while not in use for an extended time. Recently before a road trip, having not used either for months, I plugged both in to top them off. The 8 battery case was charged in no time. The XS case took 20-30 minutes to fully charge.