From dbd298445b2ee1acbce43414280fb96b823d8393 Mon Sep 17 00:00:00 2001
From: andig <andi@evcc.io>
Date: Sun, 18 Jan 2026 10:43:52 +0100
Subject: [PATCH] Sungrow Hybrid: use configured discharge power (BC) (#26723)

---
 .../definition/meter/sungrow-hybrid.yaml      | 47 +++++++------------
 1 file changed, 18 insertions(+), 29 deletions(-)

diff --git a/templates/definition/meter/sungrow-hybrid.yaml b/templates/definition/meter/sungrow-hybrid.yaml
index 947e6a310..fa8c5038b 100644
--- a/templates/definition/meter/sungrow-hybrid.yaml
+++ b/templates/definition/meter/sungrow-hybrid.yaml
@@ -15,15 +15,18 @@ params:
   - name: modbus
     choice: ["rs485", "tcpip"]
     baudrate: 9600
-  - name: maxacpower
-  - preset: battery-params
   - name: maxchargepower
-    default: 5000
+    service: modbus/read?address=13051&type=holding&encoding=uint16&scale=1&{modbus}
     required: true
   - name: maxdischargepower
-    default: 5000
-  - name: timeout
-    deprecated: true
+    service: modbus/read?address=33047&type=holding&encoding=uint16&scale=10&{modbus}
+    required: true
+  - name: capacity
+    service: modbus/read?address=5638&type=input&encoding=uint16&scale=0.01&resulttype=float&{modbus}
+  - name: maxacpower
+    service: modbus/read?address=5000&type=input&encoding=uint16&scale=100&{modbus}
+  - name: minsoc
+  - name: maxsoc
 render: |
   type: custom
   {{- if eq .usage "grid" }}
@@ -177,29 +180,6 @@ render: |
               address: 13050 # Charge/discharge command
               type: writesingle
               decode: uint16
-        # Reset max battery discharge power, set equal to max battery charge power
-        - source: go
-          script: power
-          in:
-          - name: power
-            type: int
-            config:
-              source: modbus
-              {{- include "modbus" . | indent 12 }}
-              register:
-                address: 33046 # Battery max charge power
-                type: holding
-                decode: uint16
-          out:
-          - name: power
-            type: int
-            config:
-              source: modbus
-              {{- include "modbus" . | indent 12 }}
-              register:
-                address: 33047 # Battery max discharge power
-                type: writesingle
-                decode: uint16
         - source: const
           value: 0 # Self-consumption mode (Default)
           set:
@@ -209,6 +189,15 @@ render: |
               address: 13049 # EMS mode selection
               type: writesingle
               decode: uint16
+        - source: const
+          value: {{ div .maxdischargepower 10 }}
+          set:
+            source: modbus
+            {{- include "modbus" . | indent 10 }}
+            register:
+              address: 33047 # Battery max discharge power
+              type: writesingle
+              decode: uint16
     - case: 2 # hold
       set:
         source: sequence