diff --git a/blinkpy/camera.py b/blinkpy/camera.py
index 7b05b93..8b904f5 100644
--- a/blinkpy/camera.py
+++ b/blinkpy/camera.py
@@ -41,6 +41,7 @@ class BlinkCamera():
             'temperature_c': self.temperature_c,
             'temperature_calibrated': self.temperature_calibrated,
             'battery': self.battery,
+            'battery_voltage': self.battery_voltage,
             'thumbnail': self.thumbnail,
             'video': self.clip,
             'motion_enabled': self.motion_enabled,
@@ -54,8 +55,8 @@ class BlinkCamera():
 
     @property
     def battery(self):
-        """Return battery level as percentage."""
-        return round(self.battery_voltage / 180 * 100)
+        """Return battery as string."""
+        return self.battery_state
 
     @property
     def temperature_c(self):

diff --git a/tests/test_cameras.py b/tests/test_cameras.py
index 866a2a0..17f6f64 100644
--- a/tests/test_cameras.py
+++ b/tests/test_cameras.py
@@ -87,7 +87,7 @@ class TestBlinkCameraSetup(unittest.TestCase):
         self.assertEqual(self.camera.network_id, '5678')
         self.assertEqual(self.camera.serial, '12345678')
         self.assertEqual(self.camera.motion_enabled, False)
-        self.assertEqual(self.camera.battery, 50)
+        self.assertEqual(self.camera.battery, 'ok')
         self.assertEqual(self.camera.temperature, 68)
         self.assertEqual(self.camera.temperature_c, 20)
         self.assertEqual(self.camera.temperature_calibrated, 71)

Battery percentage reported is incorrect
**Describe the bug**
The current way of calculating battery percentage is completely incorrect (I don't really know what I was thinking when I implemented it).  It takes current battery voltage divided by what the voltage should be when full....which is not even close to the correct calculation.

**Possible solution**
I'm not sure we have any good hooks to calculate battery percentage, so we may just have to use the standard "OK" or "Replace" keywords, which suck but it is what it is.  We can still, perhaps, report the battery voltage... but I'm not sure how useful that actually is.

tests/test_cameras.py::TestBlinkCameraSetup::test_camera_update
tests/test_cameras.py::TestBlinkCameraSetup::test_no_thumbnails tests/test_cameras.py::TestBlinkCameraSetup::test_no_video_clips tests/test_cameras.py::TestBlinkCameraSetup::test_thumbnail_not_in_info