diff --git a/percentage/percentage/TrayIcon.cs b/percentage/percentage/TrayIcon.cs
index d3643c6..1f92680 100644
--- a/percentage/percentage/TrayIcon.cs
+++ b/percentage/percentage/TrayIcon.cs
@@ -7,11 +7,18 @@ namespace percentage
 {
     class TrayIcon
     {
+        const string CHARGING = "Charging";
+        const string NOT_CHARGING = "Not Charging";
+        const string PLUGGED_IN = "Plugged In";
+        const string ON_BAT = "On Battery";
+        static Color TextColor = Color.White;
+        static Color BgColor = Color.Black;
+
         [DllImport("user32.dll", CharSet = CharSet.Auto)]
         static extern bool DestroyIcon(IntPtr handle);
 
         private const string iconFont = "Segoe UI";
-        private const int iconFontSize = 14;
+        private const int iconFontSize = 16;
 
         private string batteryPercentage;
         private NotifyIcon notifyIcon;
@@ -39,16 +46,16 @@ public TrayIcon()
 
             Timer timer = new Timer();
             timer.Tick += new EventHandler(timer_Tick);
-            timer.Interval = 1000; // in miliseconds
+            timer.Interval = 5000; // in miliseconds
             timer.Start();
         }
 
         private void timer_Tick(object sender, EventArgs e)
         {
             PowerStatus powerStatus = SystemInformation.PowerStatus;
-            batteryPercentage = (powerStatus.BatteryLifePercent * 100).ToString();
+            batteryPercentage = FormatBatLevel(powerStatus);
 
-            using (Bitmap bitmap = new Bitmap(DrawText(batteryPercentage, new Font(iconFont, iconFontSize), Color.White, Color.Black)))
+            using (Bitmap bitmap = new Bitmap(DrawText(batteryPercentage, new Font(iconFont, iconFontSize))))
             {
                 System.IntPtr intPtr = bitmap.GetHicon();
                 try
@@ -56,7 +63,7 @@ private void timer_Tick(object sender, EventArgs e)
                     using (Icon icon = Icon.FromHandle(intPtr))
                     {
                         notifyIcon.Icon = icon;
-                        notifyIcon.Text = batteryPercentage + "%";
+                        notifyIcon.Text = FormatTooltip(powerStatus);
                     }
                 }
                 finally
@@ -73,20 +80,20 @@ private void menuItem_Click(object sender, EventArgs e)
             Application.Exit();
         }
 
-        private Image DrawText(String text, Font font, Color textColor, Color backColor)
+        private Image DrawText(String text, Font font)
         {
             var textSize = GetImageSize(text, font);
             Image image = new Bitmap((int) textSize.Width, (int) textSize.Height);
             using (Graphics graphics = Graphics.FromImage(image))
             {
-                // paint the background
-                graphics.Clear(backColor);
+                graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixelGridFit;
+                graphics.Clear(BgColor);
 
                 // create a brush for the text
-                using (Brush textBrush = new SolidBrush(textColor))
+                using (Brush textBrush = new SolidBrush(TextColor))
                 {
                     graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
-                    graphics.DrawString(text, font, textBrush, 0, 0);
+                    graphics.DrawString(text, font, textBrush, -2, 0);
                     graphics.Save();
                 }
             }
@@ -100,5 +107,52 @@ private static SizeF GetImageSize(string text, Font font)
             using (Graphics graphics = Graphics.FromImage(image))
                 return graphics.MeasureString(text, font);
         }
+
+        private string FormatBatLevel(PowerStatus status)
+        {
+            return string.Format("{0:P0}", status.BatteryLifePercent);
+        }
+
+        private static string FormatTooltip(PowerStatus status)
+        {
+            return string.Format(
+                "{0:P0} - {1} remaining, {2}",
+                status.BatteryLifePercent,
+                HumanReadableRemainingTime(status.BatteryLifeRemaining),
+                PlugStatus(status)
+            );
+        }
+
+        private static string HumanReadableRemainingTime(int secondsRemaining)
+        {
+            if(secondsRemaining < 0)
+            {
+                return string.Format("∞");
+            }
+            int hours = 0;
+            int minutes = 0;
+            if(secondsRemaining >= 3600)
+            {
+                hours = secondsRemaining / 3600;
+                secondsRemaining = secondsRemaining % 3600;
+            }
+            if(secondsRemaining >= 60)
+            {
+                minutes = secondsRemaining / 60;
+                secondsRemaining = secondsRemaining % 60;
+            }
+            return string.Format("{0}:{1:D2}:{2:D2}", hours, minutes, secondsRemaining);
+        }
+
+        private static string PlugStatus(PowerStatus status)
+        {
+            string plugStatus = status.PowerLineStatus == PowerLineStatus.Online ? PLUGGED_IN : ON_BAT;
+            if(status.PowerLineStatus == PowerLineStatus.Offline)
+            {
+                return plugStatus;
+            }
+            string chargeStatus = status.BatteryChargeStatus == BatteryChargeStatus.Charging ? CHARGING : NOT_CHARGING;
+            return string.Format("{0}, {1}", plugStatus, chargeStatus);
+        }
     }
 }
diff --git a/percentage/percentage/percentage.csproj b/percentage/percentage/percentage.csproj
index 5711585..04f99f4 100644
--- a/percentage/percentage/percentage.csproj
+++ b/percentage/percentage/percentage.csproj
@@ -58,7 +58,7 @@
     <GenerateManifests>true</GenerateManifests>
   </PropertyGroup>
   <PropertyGroup>
-    <SignManifests>true</SignManifests>
+    <SignManifests>false</SignManifests>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />