diff --git a/io.openems.edge.battery.fenecon.home/src/io/openems/edge/battery/fenecon/home/BatteryFeneconHomeImpl.java b/io.openems.edge.battery.fenecon.home/src/io/openems/edge/battery/fenecon/home/BatteryFeneconHomeImpl.java
index 3130b3ba4f..b5cbecfad3 100644
--- a/io.openems.edge.battery.fenecon.home/src/io/openems/edge/battery/fenecon/home/BatteryFeneconHomeImpl.java
+++ b/io.openems.edge.battery.fenecon.home/src/io/openems/edge/battery/fenecon/home/BatteryFeneconHomeImpl.java
@@ -812,7 +812,7 @@ private synchronized void initializeTowerModulesChannels(int numberOfTowers, int
 						// Create Voltage Channel
 						var channelId = new ChannelIdImpl(//
 								generateSingleCellPrefix(tower, module, cell) + "_VOLTAGE",
-								Doc.of(OpenemsType.INTEGER).unit(Unit.VOLT));
+								Doc.of(OpenemsType.INTEGER).unit(Unit.MILLIVOLT));
 						this.addChannel(channelId);
 
 						// Create Modbus-Mapping for Voltages