diff --git a/templates/definition/meter/fox-ess-h3.yaml b/templates/definition/meter/fox-ess-h3.yaml
index 48a7313e96..1deb6025e8 100644
--- a/templates/definition/meter/fox-ess-h3.yaml
+++ b/templates/definition/meter/fox-ess-h3.yaml
@@ -3,12 +3,22 @@ products:
   - brand: FoxESS
     description:
       generic: H3 Series Hybrid Inverter
+capabilities: ["battery-control"]
 params:
   - name: usage
     choice: ["grid", "pv", "battery"]
   - name: modbus
     choice: ["rs485", "tcpip"]
     id: 247
+  - name: capacity
+    advanced: true
+  # battery control
+  - name: minsoc
+    type: number
+    advanced: true
+  - name: maxsoc
+    type: number
+    advanced: true
 render: |
   type: custom
   {{- if eq .usage "grid" }}
@@ -77,4 +87,17 @@ render: |
       address: 31038 # Soc
       type: holding
       decode: int16
+  limitsoc:
+    source: convert
+    convert: float2int
+    set:
+      source: modbus
+      {{- include "modbus" . | indent 4 }}
+      register:
+        address: 41009 # limit soc
+        type: writesingle
+        decode: uint16
+  capacity: {{ .capacity }} # kWh
+  minsoc: {{ .minsoc }} # %
+  maxsoc: {{ .maxsoc }} # %
   {{- end }}