Howto create battery alert without creating a template for every device

[Mariusthvdb (Marius)]

@NotoriousBDG

See Template Sensor with Dynamic Battery Icon if you want to create all the battery templates with dynamic icons. You’ll need to disable the automations in this package that create sensors from attributes if you go that route.

yes, thanks, ive seen that, and use its icon_template.
not really sure what improvement Home Assistant 0.41.0 Update | Battery Values are Gone - #13 by sebk-666 brings though. you where kind enthusiastic about that ;-)? is it it only creates the template if it exists?