diff --git a/custom_components/ohme/__init__.py b/custom_components/ohme/__init__.py
index 9b4899b..1bedc3b 100644
--- a/custom_components/ohme/__init__.py
+++ b/custom_components/ohme/__init__.py
@@ -30,11 +30,12 @@ async def async_setup_entry(hass, entry):
         return False
 
     await async_setup_dependencies(hass, config)
-    
+
     hass.data[DOMAIN][DATA_COORDINATOR] = OhmeUpdateCoordinator(hass=hass)
     await hass.data[DOMAIN][DATA_COORDINATOR].async_config_entry_first_refresh()
 
-    hass.data[DOMAIN][DATA_STATISTICS_COORDINATOR] = OhmeStatisticsUpdateCoordinator(hass=hass)
+    hass.data[DOMAIN][DATA_STATISTICS_COORDINATOR] = OhmeStatisticsUpdateCoordinator(
+        hass=hass)
     await hass.data[DOMAIN][DATA_STATISTICS_COORDINATOR].async_config_entry_first_refresh()
 
     # Create tasks for each entity type
@@ -50,6 +51,7 @@ async def async_setup_entry(hass, entry):
 
     return True
 
+
 async def async_unload_entry(hass, entry):
     """Unload a config entry."""
 
diff --git a/custom_components/ohme/client/__init__.py b/custom_components/ohme/client/__init__.py
index 24d1b30..40af91b 100644
--- a/custom_components/ohme/client/__init__.py
+++ b/custom_components/ohme/client/__init__.py
@@ -100,12 +100,12 @@ async def async_resume_charge(self):
         """Resume a paused charge"""
         result = await self._post_request(f"https://api.ohme.io/v1/chargeSessions/{self._serial}/resume", skip_json=True)
         return bool(result)
-    
+
     async def async_max_charge(self):
         """Enable max charge"""
         result = await self._put_request(f"https://api.ohme.io/v1/chargeSessions/{self._serial}/rule?maxCharge=true")
         return bool(result)
-    
+
     async def async_stop_max_charge(self):
         """Stop max charge.
            This is more complicated than starting one as we need to give more parameters."""
@@ -116,7 +116,7 @@ async def async_get_charge_sessions(self, is_retry=False):
         """Try to fetch charge sessions endpoint.
            If we get a non 200 response, refresh auth token and try again"""
         resp = await self._get_request('https://api.ohme.io/v1/chargeSessions')
-        
+
         if not resp:
             return False
 
@@ -139,7 +139,7 @@ async def async_update_device_info(self, is_retry=False):
             sw_version=device['firmwareVersionLabel'],
             serial_number=device['id']
         )
-            
+
         self._user_id = resp['user']['id']
         self._serial = device['id']
         self._device_info = info
@@ -150,7 +150,8 @@ def _last_second_of_month_timestamp(self):
         """Get the last second of this month."""
         dt = datetime.today()
         dt = dt.replace(day=1) + timedelta(days=32)
-        dt = dt.replace(day=1, hour=0, minute=0, second=0, microsecond=0) - timedelta(seconds=1)
+        dt = dt.replace(day=1, hour=0, minute=0, second=0,
+                        microsecond=0) - timedelta(seconds=1)
         return int(dt.timestamp()*1e3)
 
     async def async_get_charge_statistics(self):
@@ -168,4 +169,3 @@ def get_device_info(self):
 
     def get_unique_id(self, name):
         return f"ohme_{self._serial}_{name}"
-
diff --git a/custom_components/ohme/sensor.py b/custom_components/ohme/sensor.py
index c180029..b80e120 100644
--- a/custom_components/ohme/sensor.py
+++ b/custom_components/ohme/sensor.py
@@ -23,7 +23,8 @@ async def async_setup_entry(
     coordinator = hass.data[DOMAIN][DATA_COORDINATOR]
     stats_coordinator = hass.data[DOMAIN][DATA_STATISTICS_COORDINATOR]
 
-    sensors = [PowerDrawSensor(coordinator, hass, client), EnergyUsageSensor(stats_coordinator, hass, client)]
+    sensors = [PowerDrawSensor(coordinator, hass, client), EnergyUsageSensor(
+        stats_coordinator, hass, client)]
 
     async_add_entities(sensors, update_before_add=True)
 
@@ -49,7 +50,8 @@ def __init__(
         self.entity_id = generate_entity_id(
             "sensor.{}", "ohme_power_draw", hass=hass)
 
-        self._attr_device_info = hass.data[DOMAIN][DATA_CLIENT].get_device_info()
+        self._attr_device_info = hass.data[DOMAIN][DATA_CLIENT].get_device_info(
+        )
 
     @property
     def unique_id(self) -> str:
@@ -90,7 +92,8 @@ def __init__(
         self.entity_id = generate_entity_id(
             "sensor.{}", "ohme_accumulative_energy", hass=hass)
 
-        self._attr_device_info = hass.data[DOMAIN][DATA_CLIENT].get_device_info()
+        self._attr_device_info = hass.data[DOMAIN][DATA_CLIENT].get_device_info(
+        )
 
     @property
     def unique_id(self) -> str:
diff --git a/custom_components/ohme/switch.py b/custom_components/ohme/switch.py
index 3533f4b..b5c3107 100644
--- a/custom_components/ohme/switch.py
+++ b/custom_components/ohme/switch.py
@@ -84,10 +84,11 @@ async def async_turn_on(self):
     async def async_turn_off(self):
         """Turn off the switch."""
         await self._client.async_resume_charge()
-        
+
         await asyncio.sleep(1)
         await self.coordinator.async_refresh()
 
+
 class OhmeMaxCharge(CoordinatorEntity[OhmeUpdateCoordinator], SwitchEntity):
     """Switch for pausing a charge."""
     _attr_name = "Ohme Max Charge"
@@ -122,7 +123,8 @@ def _handle_coordinator_update(self) -> None:
         if self.coordinator.data is None:
             self._attr_is_on = False
         else:
-            self._attr_is_on = bool(self.coordinator.data["mode"] == "MAX_CHARGE")
+            self._attr_is_on = bool(
+                self.coordinator.data["mode"] == "MAX_CHARGE")
 
         self._last_updated = utcnow()