diff --git a/custom_components/bluetti_bt/__init__.py b/custom_components/bluetti_bt/__init__.py
index 8ac7d49..99458b0 100644
--- a/custom_components/bluetti_bt/__init__.py
+++ b/custom_components/bluetti_bt/__init__.py
@@ -3,7 +3,6 @@
 from __future__ import annotations
 
 import re
-import logging
 
 from homeassistant.components import bluetooth
 from homeassistant.config_entries import ConfigEntry
@@ -14,7 +13,6 @@ from homeassistant.exceptions import ConfigEntryNotReady
 
 from .const import DOMAIN, MANUFACTURER
 
-_LOGGER = logging.getLogger(__name__)
 PLATFORMS: [Platform] = [Platform.SENSOR]
 
 
diff --git a/custom_components/bluetti_bt/const.py b/custom_components/bluetti_bt/const.py
index 5962e0c..7b8748e 100644
--- a/custom_components/bluetti_bt/const.py
+++ b/custom_components/bluetti_bt/const.py
@@ -3,6 +3,5 @@
 DOMAIN = "bluetti_bt"
 MANUFACTURER = "Bluetti"
 
-API_RESPONSE_BATTERY = "total_battery_percent"
 API_RESPONSE_BATTERY_RANGE_START = "battery_range_start"
 API_RESPONSE_BATTERY_RANGE_END = "battery_range_end"
diff --git a/custom_components/bluetti_bt/sensor.py b/custom_components/bluetti_bt/sensor.py
index 620ab74..1a6e746 100644
--- a/custom_components/bluetti_bt/sensor.py
+++ b/custom_components/bluetti_bt/sensor.py
@@ -39,7 +39,6 @@ from bluetti_mqtt.mqtt_client import NORMAL_DEVICE_FIELDS
 
 from . import device_info as dev_info, get_unique_id
 from .const import (
-    API_RESPONSE_BATTERY,
     API_RESPONSE_BATTERY_RANGE_START,
     API_RESPONSE_BATTERY_RANGE_END,
 )