Although, morally, it should force me to install all the betas that Apple launches on the market, I do not do it, at least on the iPhone that I use daily, since for that I have an older iPhone that serves as a bank of tests. Betas, as their name suggests, they are not final versions, so performance and consumption can be uneven.
The battery of my iPhone XS Max usually lasts a day and a half, even two, depending on how I use it. However, since Apple will release iOS 13.5.1, I have checked as every day I have to connect it to charge it without having changed my usage habits. Also, I have noticed that it is sometimes hotter than normal.
I did not give much importance to the battery issue and I kept it warm, just like when I find it hotter than usual. When I have had a while to see what the reason for this sudden change may be (the maximum capacity is 98%), I have seen how eThe "screen off" time has skyrocketed, with an average of 3 hours.
Taking a look at the Apple support forums, I have seen how I am not alone, I am not the only user who after installing iOS 13.5.1 the battery drains faster than normal.
In these forums, one of the solutions they offer is disable background updates, a temporary solution until Apple fixes this problem that apparently is already solved with iOS 13.6.
Hurry is bad counselor. Manzana released iOS 13.5.1 to shut down the ability to jailbreak on the devices, solely and exclusively. By closing this patch, they must have touched "something" that affects the performance of some devices, among which unfortunately I find myself