baterie pri sell neklesne pod 20% ale pri normalnim provozu muze jit az k 10%, mame tak rezervu a neohrozime si nahly propad procent battery packu

backend/services/modbus_client.py

@@ -233,6 +233,17 @@ class PersistentModbusClient:
         raw = await self.read_register(address, device_id)
         return raw - 65536 if raw > 32767 else raw
 
+    async def read_holding_registers(
+        self, address: int, count: int, device_id: int = 1
+    ) -> list[int]:
+        """FC 0x03 – souvislé holding registry (ověřování po blocích)."""
+        async with _gateway_exclusive(self.host, self.port):
+            async with self._lock:
+                await self._ensure_connected()
+                return await self._read_holding_registers_locked(
+                    address, count, device_id
+                )
+
     async def write_register(self, address: int, value: int, device_id: int = 1) -> bool:
         async with _gateway_exclusive(self.host, self.port):
             async with self._lock: