diff --git a/custom_components/solax_modbus/plugin_solax.py b/custom_components/solax_modbus/plugin_solax.py
index 6175094c..790075cf 100644
--- a/custom_components/solax_modbus/plugin_solax.py
+++ b/custom_components/solax_modbus/plugin_solax.py
@@ -4219,6 +4219,7 @@ def value_function_battery_voltage_cell_difference(initval, descr, datadict):
         rounding = 2,
         allowedtypes = AC | HYBRID | GEN2 | GEN3 | GEN4 | GEN5,
         icon = "mdi:home-export-outline",
+        scan_group = SCAN_GROUP_FAST,
     ),
     SolaXModbusSensorEntityDescription(
         name = "Grid Import Total",
@@ -4234,6 +4235,7 @@ def value_function_battery_voltage_cell_difference(initval, descr, datadict):
         rounding = 2,
         allowedtypes = AC | HYBRID | GEN2 | GEN3 | GEN4 | GEN5,
         icon = "mdi:home-import-outline",
+        scan_group = SCAN_GROUP_FAST,
     ),
     SolaXModbusSensorEntityDescription(
         name = "EPS Voltage",