added check if packs available

custom_components/bluetti_bt/coordinator.py

@@ -182,7 +182,7 @@ class PollingCoordinator(DataUpdateCoordinator):
 
         async with self.polling_lock:
             try:
-                async with async_timeout.timeout(30):
+                async with async_timeout.timeout(45):
 
                     # Reconnect if not connected
                     max_retries = 5

custom_components/bluetti_bt/sensor.py

@@ -60,6 +60,8 @@ async def async_setup_entry(
     all_fields = NORMAL_DEVICE_FIELDS
     all_fields.update(DC_INPUT_FIELDS)
     all_fields.update(ADDITIONAL_DEVICE_FIELDS)
+
+    if len(bluetti_device.pack_polling_commands) > 0:
         # add pack fields for device
         _LOGGER.info("Device type(%s) pack_num_max(%s)", bluetti_device.type, bluetti_device.pack_num_max)
         for pack in range (1, bluetti_device.pack_num_max + 1):