diff --git a/evbox/integrationpluginevbox.cpp b/evbox/integrationpluginevbox.cpp
index c608b3bd..ce5a4b51 100644
--- a/evbox/integrationpluginevbox.cpp
+++ b/evbox/integrationpluginevbox.cpp
@@ -259,7 +259,7 @@ void IntegrationPluginEVBox::executeAction(ThingActionInfo *info)
         quint16 maxChargingCurrent = thing->stateValue("maxChargingCurrent").toUInt();
         port->sendCommand(EVBoxPort::Command68, 60, power ? maxChargingCurrent : 0, serial);
     } else if (actionType.name() == "maxChargingCurrent") {
-        int maxChargingCurrent = info->action().paramValue(actionType.id()).toInt();
+        int maxChargingCurrent = qRound(info->action().paramValue(actionType.id()).toDouble());
         port->sendCommand(EVBoxPort::Command68, 60, maxChargingCurrent, serial);
     }
 
@@ -279,7 +279,7 @@ void IntegrationPluginEVBox::finishPendingAction(Thing *thing)
         if (actionType.name() == "power") {
             thing->setStateValue("power", info->action().paramValue(actionType.id()));
         } else if (actionType.name() == "maxChargingCurrent") {
-            thing->setStateValue("maxChargingCurrent", info->action().paramValue(actionType.id()));
+            thing->setStateValue("maxChargingCurrent", qRound(info->action().paramValue(actionType.id()).toDouble()));
         }
         info->finish(Thing::ThingErrorNoError);
     }
diff --git a/evbox/integrationpluginevbox.json b/evbox/integrationpluginevbox.json
index 85284dd5..ed81f116 100644
--- a/evbox/integrationpluginevbox.json
+++ b/evbox/integrationpluginevbox.json
@@ -56,11 +56,12 @@
                             "name": "maxChargingCurrent",
                             "displayName": "Maximum charging current",
                             "displayNameAction": "Set maximum charging current",
-                            "type": "uint",
+                            "type": "double",
                             "writable": true,
                             "unit": "Ampere",
                             "minValue": "6",
                             "maxValue": "32",
+                            "stepSize": 1.0,
                             "defaultValue": 6
                         },
                         {
@@ -157,11 +158,12 @@
                             "name": "maxChargingCurrent",
                             "displayName": "Maximum charging current",
                             "displayNameAction": "Set maximum charging current",
-                            "type": "uint",
+                            "type": "double",
                             "writable": true,
                             "unit": "Ampere",
                             "minValue": "6",
                             "maxValue": "32",
+                            "stepSize": 1.0,
                             "defaultValue": 6
                         },
                         {