diff --git a/bedroom_lilygo_t7v13.yaml b/bedroom_lilygo_t7v13.yaml
index 1323c72..4209c6b 100644
--- a/bedroom_lilygo_t7v13.yaml
+++ b/bedroom_lilygo_t7v13.yaml
@@ -46,7 +46,7 @@ sensor:
     name: "Battery Voltage"
     update_interval: 10s
     filters:
-      - multiply: 0.83 #(3.24/3.90)
+      - multiply: 0.83 #(3.24/3.90) per measurements
 
 binary_sensor:
   - platform: gpio