text: """Support for Acmeda Roller Blind Batteries."""
  from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
  from homeassistant.const import PERCENTAGE
  from homeassistant.core import callback
  from homeassistant.helpers.dispatcher import async_dispatcher_connect
  
  from .base import AcmedaBase
  from .const import ACMEDA_HUB_UPDATE, DOMAIN
  from .helpers import async_add_acmeda_entities
  
  
  async def async_setup_entry(hass, config_entry, async_add_entities):
      """Set up the Acmeda Rollers from a config entry."""
      hub = hass.data[DOMAIN][config_entry.entry_id]
  
      current = set()
  
      @callback
      def async_add_acmeda_sensors():
          async_add_acmeda_entities(
              hass, AcmedaBattery, config_entry, current, async_add_entities
          )
  
      hub.cleanup_callbacks.append(
          async_dispatcher_connect(
              hass,
              ACMEDA_HUB_UPDATE.format(config_entry.entry_id),
              async_add_acmeda_sensors,
          )
      )
  
  
  class AcmedaBattery(AcmedaBase, SensorEntity):
      """Representation of a Acmeda cover device."""
  
      device_class = SensorDeviceClass.BATTERY
      _attr_native_unit_of_measurement = PERCENTAGE
  
      @property
      def name(self):
          """Return the name of roller."""
          return f"{super().name} Battery"
  
      @property
      def native_value(self):
          """Return the state of the device."""
          return self.roller.battery
  