Please answer only if you know it
It is more likely that the battery is broken due to charging errors. All in all, you can't answer that, because you do not mention an explicit iPhone model.
The battery… Choirs delight
3000mAh are 3000mAh whether Apple or Huawei is on it.
how fast a battery becomes empty is because of the load, if you have 24/7 any apps in the background then both are pretty fast empty.
Which loading errors because
You already realize that IPHONE is just the brand and every model is different?
Each battery is fast empty when the phone is much used.
https://www.computerbild.de/...39165.html
According to test:
"The battery life with typical use in the test is a decent 11 hours and 40 minutes."
And that is perfectly fine in my opinion.
I also suspect that Huawei in Standy holds a few days.
I'm starting from the latest iphone
Avoid deep discharge
Do not hang the phone all night on the plugged in charging cable
Keep the battery level ideally between 20% - 80%
however, it depends on which battery type is installed. Lithium polymer or lithium ions, etc.
If you think so it will be