diff --git a/sucks/__init__.py b/sucks/__init__.py
index 0e8408a..dfafafe 100644
--- a/sucks/__init__.py
+++ b/sucks/__init__.py
@@ -296,9 +296,7 @@ class VacBot():
         except KeyError:
             _LOGGER.warning("Unknown component type: '" + type + "'")
 
-        total = float(event['total'])
-        val = float(event['val'])
-        lifespan = val / total
+        lifespan = int(event['val']) / 100
         self.components[type] = lifespan
 
         lifespan_event = {'type': type, 'lifespan': lifespan}
diff --git a/tests/test_vacbot.py b/tests/test_vacbot.py
index d2cb463..925168c 100644
--- a/tests/test_vacbot.py
+++ b/tests/test_vacbot.py
@@ -83,17 +83,19 @@ def test_lifespan_reports():
     v = a_vacbot()
     assert_equals({}, v.components)
 
+    # Note: The "total" values don't seem to have any meaning
+
     v._handle_ctl({'event': 'life_span', 'type': 'side_brush', 'total': '100', 'val': '50'})
     assert_equals({'side_brush': 0.5}, v.components)
 
     v._handle_ctl({'event': 'life_span', 'type': 'brush', 'total': '200', 'val': '1'})
-    assert_equals({'side_brush': 0.5, 'main_brush': 0.005}, v.components)
+    assert_equals({'side_brush': 0.5, 'main_brush': 0.01}, v.components)
 
     v._handle_ctl({'event': 'life_span', 'type': 'side_brush', 'total': '100', 'val': '0'})
-    assert_equals({'side_brush': 0, 'main_brush': 0.005}, v.components)
+    assert_equals({'side_brush': 0, 'main_brush': 0.01}, v.components)
 
     v._handle_ctl({'event': 'life_span', 'type': 'a_weird_component', 'total': '100', 'val': '87'})
-    assert_equals({'side_brush': 0, 'main_brush': 0.005, 'a_weird_component': 0.87}, v.components)
+    assert_equals({'side_brush': 0, 'main_brush': 0.01, 'a_weird_component': 0.87}, v.components)
 
 def test_is_cleaning():
     v = a_vacbot()