diff --git a/ScStwLibraries/headers/ScStw.hpp b/ScStwLibraries/headers/ScStw.hpp
index e88eee1..e7584dd 100644
--- a/ScStwLibraries/headers/ScStw.hpp
+++ b/ScStwLibraries/headers/ScStw.hpp
@@ -142,6 +142,9 @@ public:
     Q_ENUM(ExtensionType);
 
 
+    /*!
+     * \brief The ExtensionState enum contains all possible states of an extension
+     */
     enum ExtensionState {
         Disconnected = 0,
         Connecting = 1,
@@ -151,6 +154,26 @@ public:
     Q_ENUM(ExtensionState);
 
 
+    /*!
+     * \brief The ExtensionBatteryState enum contains all possible battery states of an extension
+     */
+    enum ExtensionBatteryState {
+        BatteryUnknown = -1,
+        BatteryFine = 1,
+        BatteryCritical = 0
+    };
+    Q_ENUM(ExtensionBatteryState);
+
+    /*!
+     * \brief The PadState enum contains whether a pad is currently pressed or not
+     */
+    enum PadState {
+        PadNotPressed = 0,
+        PadPressed = 1
+    };
+    Q_ENUM(PadState);
+
+
     /*!
      * \brief SOCKET_MESSAGE_START_KEY contains the key, a message is supposed to start with
      */
diff --git a/ScStwLibraries/headers/scstwtimer.h b/ScStwLibraries/headers/scstwtimer.h
index ee82a10..51561fa 100644
--- a/ScStwLibraries/headers/scstwtimer.h
+++ b/ScStwLibraries/headers/scstwtimer.h
@@ -105,8 +105,9 @@ public:
         IsReady = 0,                /*!< Timer is ready for start */
         NotInIdleState,             /*!< Timer is not in IDLE state */
         IsDisabled,                 /*!< Timer is disabled */
-        NotAllExtensionsConnected,  /*!< Not all extension of the timer are conneted */
-        NotAllClimbersReady         /*!< The startpad of the timer is not triggered */
+        ExtensionIsNotConnected,    /*!< Not all extension of the timer are conneted */
+        ExtensionBatteryNotFine,    /*!< The battery level of one or more extension is critical or unknown */
+        ClimberIsNotReady           /*!< The startpad of the timer is not triggered */
     };
 
 protected: