From 08a3e2b2230e98526fa469bb40ec6267f3498e48 Mon Sep 17 00:00:00 2001
From: Mike Salway <38225053+msalway@users.noreply.github.com>
Date: Sat, 20 Jan 2024 15:20:40 +0000
Subject: [PATCH] Set state_class for battery sensor to enable historic stats

---
 custom_components/wiser/sensor.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/custom_components/wiser/sensor.py b/custom_components/wiser/sensor.py
index 996336f..e01d522 100755
--- a/custom_components/wiser/sensor.py
+++ b/custom_components/wiser/sensor.py
@@ -286,6 +286,10 @@ def device_class(self):
         """Return the class of the sensor."""
         return SensorDeviceClass.BATTERY
 
+    @property
+    def state_class(self):
+        return SensorStateClass.MEASUREMENT
+
     @property
     def native_unit_of_measurement(self):
         """Return the unit of measurement of this entity."""