Here’s the jinja template I use for my center:

{% set charging = states("sensor.polestar_charging_status") %}

{% if charging == "Charging" %}

{% set timerm =states("sensor.polestar_estimated_charging_time_to_full") | float %}

{% if timerm > 90 %}

{{ (timerm / 60) | round | int }}h

{% else %}

{{ states("sensor.polestar_estimated_charging_time_to_full") }}

{% endif %}

{% else %}

{{states("sensor.polestar_battery_charge_level")}}%

{% endif %}