diff --git a/Bat_EV_SDL/module.php b/Bat_EV_SDL/module.php
index 2f624f9..88ff178 100644
--- a/Bat_EV_SDL/module.php
+++ b/Bat_EV_SDL/module.php
@@ -25,8 +25,8 @@ class Bat_EV_SDL extends IPSModule
         $this->RegisterVariableFloat("SoC_SDL", "SoC SDL (%)", "", 12);
         $this->RegisterVariableFloat("SoC_EV",  "SoC EV (%)",  "", 13);
 
-        $this->RegisterVariableFloat("P_SDL_max", "P SDL max (W)", "", 20);
-        $this->RegisterVariableFloat("P_EV_max",  "P EV max (W)",  "", 21);
+        $this->RegisterVariableFloat("SDL_max", "P SDL max (W)", "", 20);
+        $this->RegisterVariableFloat("EV_max",  "P EV max (W)",  "", 21);
 
         $this->RegisterVariableFloat("P_EV_laden",     "P EV laden max (W)",     "", 22);
         $this->RegisterVariableFloat("P_EV_entladen",  "P EV entladen max (W)",  "", 23);