Battery ticker UI tweaks

[shashankmittal]

Hi Davide
I have setup low battery alerts for all my battery devices. Here is the YAML I am using:

• operator: <=
  state: '40'
  message: ''
  priority: 4
  theme: battery
  icon: 🔋
  name: Battery alert
  entity_filter_exclude: null
  show_filter_state: true
  use_ha_icon: false
  color: '#ff0000'
  badge_label: Battery
  label_filter:
  • battery_reporting_alert
    device_class: battery

Could you please consider the following enhancements for the product roadmap?

1. Some entity names can be quite long, and since they don’t scroll, the battery level value becomes hidden.
2. It would be helpful if the appended word “Battery” could be made optional to shorten the entity name.
3. The battery level value currently appears in the same font and color as the entity name. Displaying it on the far right in a distinct color would improve readability, especially from a distance. (Similar to the countdown ticker in the above screenshot)

[djdevil]

Hi @shashankmittal — great suggestions, all three are now implemented in v1.3.9.8.4! 🙏

Here's what changed for the `battery` theme when using `device_class` / `label_filter` entity groups:

1. Battery level on the right — the percentage is now displayed automatically in a large, colour-coded number on the right side of the card (green ≥ 40 %, yellow 20–39 %, red < 20 %), similar to the countdown timer column. The inline state value is suppressed when the level is already shown there.

2. Truncated entity name — long entity names now truncate with an ellipsis (`…`) instead of overflowing and hiding the level value.

3. Strip «Battery» suffix — new option `battery_trim_name: true` removes the trailing word "Battery" (case-insensitive) from the entity's friendly name. Also available as a toggle in the visual editor.

Example YAML addition:

```yaml
battery_trim_name: true
```

Update to v1.3.9.8.4 to get all of these improvements.

---

[shashankmittal]

Everything is working as per your changelog! You are a champ!!! Thanks!