diff --git a/src/comm/MAVLinkSimulationLink.cc b/src/comm/MAVLinkSimulationLink.cc
index 225d5a7d8c9b9fb00f56fb7117aef9ff0b998647..a8aa4e0949f03d507f603f3f0b57caeb04b3dc92 100644
--- a/src/comm/MAVLinkSimulationLink.cc
+++ b/src/comm/MAVLinkSimulationLink.cc
@@ -147,7 +147,7 @@ void MAVLinkSimulationLink::mainloop()
     static float fullVoltage = 4.2 * 3;
     static float emptyVoltage = 3.35 * 3;
     static float voltage = fullVoltage;
-    static float drainRate = 0.0025; // x.xx% of the capacity is linearly drained per second
+    static float drainRate = 0.025; // x.xx% of the capacity is linearly drained per second
 
     attitude_t attitude;
     raw_aux_t rawAuxValues;
@@ -352,7 +352,7 @@ void MAVLinkSimulationLink::mainloop()
         }
         statusCounter++;
 
-        status.vbat = voltage;
+        status.vbat = voltage * 1000; // millivolts
 
         // Pack message and get size of encoded byte string
         messageSize = message_sys_status_encode(systemId, componentId, &msg, &status);
diff --git a/src/uas/UAS.cc b/src/uas/UAS.cc
index aaba0648cfe06ae5d729f6f53d1a5fbb22cc36d7..46d6409723c70a4ba786ca76382983cbb2dcdb5e 100644
--- a/src/uas/UAS.cc
+++ b/src/uas/UAS.cc
@@ -52,8 +52,8 @@ UAS::UAS(MAVLinkProtocol* protocol, int id) :
         thrustSum(0),
         thrustMax(10),
         startVoltage(0),
-        currentVoltage(0.0f),
-        lpVoltage(0.0f),
+        currentVoltage(12.0f),
+        lpVoltage(12.0f),
         mode(MAV_MODE_UNINIT),
         status(MAV_STATE_UNINIT),
         onboardTimeOffset(0),
diff --git a/src/ui/ParameterInterface.cc b/src/ui/ParameterInterface.cc
index 4dc21b3332ff78c6c1ef667dc11f16220d71ea3a..c18c4df988127c37a897dab37746c6b79fdd1e8a 100644
--- a/src/ui/ParameterInterface.cc
+++ b/src/ui/ParameterInterface.cc
@@ -16,12 +16,20 @@ ParameterInterface::ParameterInterface(QWidget *parent) :
 
     tree = new ParamTreeModel();
 
-    treeView = new QTreeView(this);
-    treeView->setModel(tree);
+    //treeView = new QTreeView(this);
+    //treeView->setModel(tree);
+
+    treeWidget = new QTreeWidget(this);
+    QStringList headerItems;
+    headerItems.append("Parameter");
+    headerItems.append("Value");
+    treeWidget->setHeaderLabels(headerItems);
 
     QStackedWidget* stack = m_ui->stackedWidget;
-    stack->addWidget(treeView);
-    stack->setCurrentWidget(treeView);
+    //stack->addWidget(treeView);
+    //stack->setCurrentWidget(treeView);
+    stack->addWidget(treeWidget);
+    stack->setCurrentWidget(treeWidget);
 
 }
 
@@ -56,6 +64,8 @@ void ParameterInterface::addUAS(UASInterface* uas)
 void ParameterInterface::requestParameterList()
 {
     mav->requestParameters();
+    // Clear view
+    treeWidget->clear();
 }
 
 /**
@@ -73,9 +83,11 @@ void ParameterInterface::receiveParameter(int uas, int component, QString parame
 {
     Q_UNUSED(uas);
     // Insert parameter into map
-    tree->appendParam(component, parameterName, value);
-    // Refresh view
-    treeView->update();
+    //tree->appendParam(component, parameterName, value);
+    QStringList list;
+    list.append(parameterName);
+    list.append(QString::number(value));
+    treeWidget->addTopLevelItem(new QTreeWidgetItem(list));
 }
 
 /**
diff --git a/src/ui/ParameterInterface.h b/src/ui/ParameterInterface.h
index 7da36303cdefa4f9583b48baf93469a2c42bcbe6..266014d3ed3ecf6c91daaf7d15a803f30db20ffb 100644
--- a/src/ui/ParameterInterface.h
+++ b/src/ui/ParameterInterface.h
@@ -3,6 +3,7 @@
 
 #include <QtGui/QWidget>
 #include <QtGui/QTreeView>
+#include <QtGui/QTreeWidget>
 #include "ui_ParameterInterface.h"
 #include "UASInterface.h"
 #include "ParamTreeModel.h"
@@ -31,6 +32,7 @@ protected:
     UASInterface* mav;
     ParamTreeModel* tree;
     QTreeView* treeView;
+    QTreeWidget* treeWidget;
 
 private:
     Ui::parameterWidget *m_ui;
diff --git a/src/ui/param/ParamTreeItem.cc b/src/ui/param/ParamTreeItem.cc
index 29cd8815bf1d24f433e69ed3b45721dd8939c7a7..40972e37411c688edf0ab7409d09e98afa37e4fb 100644
--- a/src/ui/param/ParamTreeItem.cc
+++ b/src/ui/param/ParamTreeItem.cc
@@ -107,11 +107,16 @@ QVariant ParamTreeItem::data(int column) const
     }
 }
 
-ParamTreeItem *ParamTreeItem::parent()
+ParamTreeItem *ParamTreeItem::parent() const
 {
     return parentItem;
 }
 
+const QList<ParamTreeItem*>* ParamTreeItem::children() const
+{
+    return &childItems;
+}
+
 int ParamTreeItem::row() const
 {
     if (parentItem)
diff --git a/src/ui/param/ParamTreeItem.h b/src/ui/param/ParamTreeItem.h
index 1b9f6ab5478e7d7c112562ba9f73575751930c12..3ba8b3e03a9d56d4461cb9c03888dfb81ad69a73 100644
--- a/src/ui/param/ParamTreeItem.h
+++ b/src/ui/param/ParamTreeItem.h
@@ -53,7 +53,8 @@ public:
     int columnCount() const;
     QVariant data(int column) const;
     int row() const;
-    ParamTreeItem *parent();
+    ParamTreeItem *parent() const;
+    const QList<ParamTreeItem*>* children() const;
 
     protected:
     QString paramName;
diff --git a/src/ui/param/ParamTreeModel.cc b/src/ui/param/ParamTreeModel.cc
index b3484ff81352527c4a6d8cfe4c64ba89d18671f3..fa991ee5770bd055035213da3e1994b97a0e50c2 100644
--- a/src/ui/param/ParamTreeModel.cc
+++ b/src/ui/param/ParamTreeModel.cc
@@ -172,11 +172,11 @@ void ParamTreeModel::appendComponent(int componentId)
         ParamTreeItem* item = new ParamTreeItem(QString("Component #") + QString::number(componentId) + QString(""), 0, rootItem);
         components.insert(componentId, item);
     }
+    //emit dataChanged();
 }
 
 void ParamTreeModel::appendParam(int componentId, QString name, float value)
 {
-
     // If component does not exist yet
     if (!components.contains(componentId))
     {
@@ -186,6 +186,7 @@ void ParamTreeModel::appendParam(int componentId, QString name, float value)
     // FIXME Children may be double here
     comp->appendChild(new ParamTreeItem(name, value, comp));
     qDebug() << __FILE__ << __LINE__ << "Added param" << name << value << "for component" << comp->getParamName();
+    emit dataChanged(createIndex(0, 0, rootItem), createIndex(0, 0, rootItem));
 }
 
 void ParamTreeModel::setupModelData(const QStringList &lines, ParamTreeItem *parent)