From 3df6d26712ddc0625549571d7d1083f5dadeda23 Mon Sep 17 00:00:00 2001
From: Aaron Bach <bachya1208@gmail.com>
Date: Wed, 13 Apr 2022 12:30:19 -0600
Subject: [PATCH] Fix missing interior battery sensor for Ambient PWS (#69994)

---
 homeassistant/components/ambient_station/binary_sensor.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/homeassistant/components/ambient_station/binary_sensor.py b/homeassistant/components/ambient_station/binary_sensor.py
index f9fcec6aa6a..5fecbce3ded 100644
--- a/homeassistant/components/ambient_station/binary_sensor.py
+++ b/homeassistant/components/ambient_station/binary_sensor.py
@@ -28,6 +28,7 @@ TYPE_BATT6 = "batt6"
 TYPE_BATT7 = "batt7"
 TYPE_BATT8 = "batt8"
 TYPE_BATT9 = "batt9"
+TYPE_BATTIN = "battin"
 TYPE_BATTOUT = "battout"
 TYPE_BATT_CO2 = "batt_co2"
 TYPE_BATT_LIGHTNING = "batt_lightning"
@@ -140,6 +141,13 @@ BINARY_SENSOR_DESCRIPTIONS = (
         entity_category=EntityCategory.DIAGNOSTIC,
         on_state=0,
     ),
+    AmbientBinarySensorDescription(
+        key=TYPE_BATTIN,
+        name="Interior Battery",
+        device_class=BinarySensorDeviceClass.BATTERY,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        on_state=0,
+    ),
     AmbientBinarySensorDescription(
         key=TYPE_BATT10,
         name="Soil Monitor Battery 10",