Fix missing string translation and add battery level to device tracker

custom_components/mammotion/device_tracker.py

@@ -2,6 +2,7 @@
 import logging
 from typing import Any
 
+from cryptography.utils import cached_property
 from homeassistant.components.device_tracker import SourceType, TrackerEntity
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -57,6 +58,11 @@ def longitude(self) -> float | None:
         """Return longitude value of the device."""
         return self.coordinator.device.luba_msg.location.device.longitude
 
+    @property
+    def battery_level(self) -> int | None:
+        """Return the battery level of the device."""
+        return self.coordinator.data.report_data.dev.battery_val
+
     @property
     def source_type(self) -> SourceType:
         """Return the source type, e.g., GPS or router, of the device."""

custom_components/mammotion/translations/en.json

@@ -74,6 +74,10 @@
     "button": {
       "start_map_sync": {
         "name": "Sync maps"
+      },
+       "resync_rtk_dock": {
+        "name": "Sync RTK and dock",
+        "description": "Syncs RTK and dock location for when you move them."
       }
     },
     "switch": {