New to custom roms question

[mozillafirewater]

Hi, I've been thinking about changing from the global miui to xiaomi.eu lately because a lot of people recommend it. I have a Mi 11 which is a great phone but its battery life isn't so much great, so does the mi 11 battery last longer with xiaomi.eu? I've seen some other post where it seems that the stable version of xiaomi.eu make the battery last 1 hour longer than what it typically last for me, but I'd like to see how is it on most people.