diff --git a/Bat_EV_SDL _V2/form.json b/Bat_EV_SDL _V2/form.json
index 82b135b..b6d85a4 100644
--- a/Bat_EV_SDL _V2/form.json	
+++ b/Bat_EV_SDL _V2/form.json	
@@ -61,6 +61,25 @@
                     "type":"SelectVariable"
                     }
                 }
+                ,
+                {
+                    "caption":"Register Laden",
+                    "name":"register_laden",
+                    "width":"200px",
+                    "add":0,
+                    "edit":{
+                    "type":"SelectVariable"
+                    }
+                },
+                {
+                    "caption":"Register Entladen",
+                    "name":"register_entladen",
+                    "width":"200px",
+                    "add":0,
+                    "edit":{
+                    "type":"SelectVariable"
+                    }
+                }
 
             ]
         },
diff --git a/Bat_EV_SDL _V2/module.php b/Bat_EV_SDL _V2/module.php
index 9add5f9..250c13d 100644
--- a/Bat_EV_SDL _V2/module.php	
+++ b/Bat_EV_SDL _V2/module.php	
@@ -502,10 +502,8 @@ class Bat_EV_SDL_V2 extends IPSModule
     }
 
     private function WriteBatteryPowerSetpoints(array $distribution): void
-    {   
-        // chargeW und dischargeW sind in W. Wenn good hat muss in kW umrechnen
-
-        // Batteries-Config laden (für Variable-IDs + typ)
+    {
+        // Batteries-Config laden (enthält register_laden / register_entladen)
         $batteriesCfg = json_decode($this->ReadPropertyString("Batteries"), true);
         if (!is_array($batteriesCfg) || empty($batteriesCfg)) {
             return;
@@ -520,6 +518,8 @@ class Bat_EV_SDL_V2 extends IPSModule
             }
 
             $cfg = $batteriesCfg[$idx];
+
+            // typ aus distribution bevorzugen, sonst aus Config
             $typ = (string)($d["typ"] ?? ($cfg["typ"] ?? ("Bat " . ($idx + 1))));
 
             // --- Sollwerte (Watt) ---
@@ -528,32 +528,96 @@ class Bat_EV_SDL_V2 extends IPSModule
 
             // Sicherheitsnetz: nie gleichzeitig laden & entladen
             if ($chargeW > 0.0 && $dischargeW > 0.0) {
-                // Debug-Hinweis, falls Strategie Mist gebaut hat
                 $this->SendDebug(
                     "WriteBatteryPowerSetpoints",
-                    "WARN: charge & discharge gleichzeitig > 0 bei $typ (idx=$idx)",
+                    "WARN: charge & discharge gleichzeitig > 0 bei $typ (idx=$idx) -> setze beides 0",
                     0
                 );
                 $chargeW = 0.0;
                 $dischargeW = 0.0;
             }
 
-            // --- Ziel-Variablen ---
-            $varCharge    = (int)($cfg["powerbat_laden"] ?? 0);
-            $varDischarge = (int)($cfg["powerbat_entladen"] ?? 0);
-
-            // --- Schreiben ---
-            if ($varCharge > 0 && IPS_VariableExists($varCharge)) {
-                SetValue($varCharge, (int)round($chargeW, 0));
-            }
-
-            if ($varDischarge > 0 && IPS_VariableExists($varDischarge)) {
-                SetValue($varDischarge, (int)round($dischargeW, 0));
-            }
-
+            // --- Vendor-/Default-Handling über Register schreiben ---
+            $this->WriteByVendorRegisters($typ, $cfg, $chargeW, $dischargeW);
 
+            // Optionales Debug
+            $this->SendDebug(
+                "Setpoints",
+                "$typ (idx=$idx): charge={$chargeW}W discharge={$dischargeW}W",
+                0
+            );
         }
     }
 
+    private function WriteByVendorRegisters(string $typ, array $cfg, float $chargeW, float $dischargeW): void
+    {
+        $typLower = mb_strtolower($typ);
+
+        // Register aus Formular
+        $regCharge = (int)($cfg["register_laden"] ?? 0);
+        $regDisch  = (int)($cfg["register_entladen"] ?? 0);
+
+        // -----------------------------
+        // GOODWE → ein Register, signed
+        // -----------------------------
+        if (strpos($typLower, "goodwe") !== false) {
+
+            if ($regCharge > 0 && IPS_VariableExists($regCharge)) {
+                $signedW = 0.0;
+
+                if ($chargeW > 0.0) {
+                    $signedW = $chargeW;           // Laden → +
+                } elseif ($dischargeW > 0.0) {
+                    $signedW = -1.0 * $dischargeW; // Entladen → -
+                }
+
+                SetValue($regCharge, (int)round($signedW, 0));
+            }
+
+            // optional: zweites Register auf 0 halten
+            if ($regDisch > 0 && IPS_VariableExists($regDisch)) {
+                SetValue($regDisch, 0);
+            }
+
+            return;
+        }
+
+        // --------------------------------
+        // SOLAREDGE → getrennte Register
+        // --------------------------------
+        if (strpos($typLower, "solaredge") !== false) {
+
+            if ($regCharge > 0 && IPS_VariableExists($regCharge)) {
+                SetValue($regCharge, (int)round($chargeW, 0));
+            }
+
+            if ($regDisch > 0 && IPS_VariableExists($regDisch)) {
+                SetValue($regDisch, (int)round($dischargeW, 0));
+            }
+
+            return;
+        }
+
+        // --------------------------------
+        // DEFAULT → getrennt, fest: 1 / 2
+        // --------------------------------
+        // Laden = Register 1, Entladen = Register 2
+
+        if (IPS_VariableExists(1)) {
+            SetValue(1, (int)round($chargeW, 0));
+        }
+
+        if (IPS_VariableExists(2)) {
+            SetValue(2, (int)round($dischargeW, 0));
+        }
+
+        $this->SendDebug(
+            "WriteByVendorRegisters",
+            "DEFAULT ($typ): charge={$chargeW}W -> Reg1, discharge={$dischargeW}W -> Reg2",
+            0
+        );
+    }
+
+
 }
 ?>