Battery capacity at huawei mate 20 pro?

I have been using a huawei mate 20 pro for about 8 months. I found out with an app that the battery capacity is only 3840 mah and not 4200 mah as it should be. Should I replace the battery?

These values of the app are fantasy values, the app can't determine the battery status at all, these are estimated values based on the number of charging processes, if the app was installed much later after purchase, the values are even less precise. Your app shows 2 charging processes and an estimated capacity that lacks any foundation

I also had such an app on my old Sony Xperia Z2 tablet, the battery was at 50% capacity and already 4 years old, the app showed me that my battery has 120% capacity and that my battery is completely in order, that is The tablet ran out of charge below 50% because the battery was flat.

Throw the app down and forget about those apps, they won't do you any good

Battery saving apps
Similar to the applications that are supposed to free up memory, apps to relieve your cell phone battery are nonsensical. Not only do they often promise real miracles, they also come along often enough with lots of advertising

In order to actually save energy, the consumption of your operating system and all running programs would have to be reduced. Appropriate apps would have to be able to take control of Android. All you can do about it is to close energy-consuming apps that will most likely open again on their own. And in the end, the battery consumption of your Android phone will even increase.

So rather open your battery settings and take a closer look at which of your apps is the most stressful for you.

Settings> Device maintenance> Battery> Battery consumption

Android phone and battery life: this is to be avoided
Experts https://www.shefinds.com/collections/mistake-killing-android-lifespan/#slide-5 is the one serious mistake that users of an Android cell phone in particular make very often, a rather unconscious one: "What harms the lifespan of the devices is to run the Android cell phone with almost full memory," says Brandon Ackroyd, founder of Tiger Mobiles. That doesn't mean anything good for your cell phone battery.

The problem: the more data you have stored on your Android phone, the longer it takes to perform normal functions. This means that apps open more slowly, processes get stuck and handling the device just becomes annoying at some point. But above all, your cell phone battery is massively loaded.

You can do that
To prevent this problem from the outset, there are general https://www.futurezone.de/digital-life/article214993965/Hilfe-mein-Handy-Speicher-ist-voll-So-schafft-ihr-Platz.html. By the way, it is also sufficient for the beginning, only https://www.futurezone.de/digital-life/article217033531/Handy-Speicher-voll-dann-loesch-dringend-diese-App.html?ref=sec. That alone can relieve your Android phone and its battery.

https://www.futurezone.de/digital-life/article216798717/Android-Handy-Akku-in-Gefahr-Dieser-Fehler-schadet.html