It seems that i have enabled my battery modules for a few months, but i just noticed the difference last night when i looked at KDE Control Panel at Laptop Battery section. Here you can see the difference when the battery modules are loaded and not loaded.
Below is the screenshots when battery modules are not loaded:
And here are the screenshots after the battery modules are loaded:
I even had new tabs for ACPI config which i can use to enable hibernate, suspend, and CPU throttling, but i didn't want to take that risk by enabling them:
Next steps is to enable the hotkey buttons. I'm still looking on how to do this. So far, i only got Wallecha's post.