diff --git a/README.md b/README.md
index e70c609..e104492 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ The station is equipped with the following sensors and functionalities :
 ## Power consumption :
 * Around **60µA** during sleep.
 * Around a **13mA** spike during data transmission and **4mA** during sensor data collection.
-* The solar panel is enough to even charge the battery, it should thus never need to be replaced or recharged.
+* The solar panel is enough to even charge the battery, it should thus never need to be replaced or recharged externally.
 
 ## Project folder architecture :
 ``` json