diff --git a/Firmware-Compatibility.md b/Firmware-Compatibility.md
index 8e08019..ce92395 100644
--- a/Firmware-Compatibility.md
+++ b/Firmware-Compatibility.md
@@ -54,6 +54,7 @@ This is the pin mapping this firmware is using, you might have to adapt it to yo
 |OFF|PA5|PC15|
 |BUTTON|PA1|PB9|
 |CHARGER|PA12|PA11|
+|BATTERY|PC2|PA1|
 
 # Other boards
 ## Artery boards