diff --git a/Facepunch.Steamworks.Test/Client/UtilsTest.cs b/Facepunch.Steamworks.Test/Client/UtilsTest.cs
new file mode 100644
index 0000000..5475a67
--- /dev/null
+++ b/Facepunch.Steamworks.Test/Client/UtilsTest.cs
@@ -0,0 +1,117 @@
+using System;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace Steamworks
+{
+    [TestClass]
+    [DeploymentItem( "steam_api64.dll" )]
+    public class UtilsTest
+    {
+		[TestMethod]
+        public void SecondsSinceAppActive()
+        {
+			var time = Utils.SecondsSinceAppActive;
+			Console.WriteLine( $"{time}" );
+		}
+
+		[TestMethod]
+		public void SecondsSinceComputerActive()
+		{
+			var time = Utils.SecondsSinceComputerActive;
+			Console.WriteLine( $"{time}" );
+		}
+
+		[TestMethod]
+		public void ConnectedUniverse()
+		{
+			var u = Utils.ConnectedUniverse;
+			Console.WriteLine( $"{u}" );
+		}
+
+		[TestMethod]
+		public void SteamServerTime()
+		{
+			var time = Utils.SteamServerTime;
+			Console.WriteLine( $"{time}" );
+		}
+
+		[TestMethod]
+		public void IpCountry()
+		{
+			var cnt = Utils.IpCountry;
+			Console.WriteLine( $"{cnt}" );
+		}
+
+		[TestMethod]
+		public void UsingBatteryPower()
+		{
+			var cnt = Utils.UsingBatteryPower;
+			Console.WriteLine( $"{cnt}" );
+		}
+
+		[TestMethod]
+		public void CurrentBatteryPower()
+		{
+			var cnt = Utils.CurrentBatteryPower;
+			Console.WriteLine( $"{cnt}" );
+		}
+
+		[TestMethod]
+		public void AppId()
+		{
+			var cnt = Utils.AppId;
+
+			Assert.IsTrue( cnt.Value > 0 );
+
+			Console.WriteLine( $"{cnt.Value}" );
+		}
+
+		[TestMethod]
+		public void IsOverlayEnabled()
+		{
+			var cnt = Utils.IsOverlayEnabled;
+			Console.WriteLine( $"{cnt}" );
+		}
+
+		[TestMethod]
+		public async Task CheckFileSignature()
+		{
+			var sig = await Utils.CheckFileSignature( "hl2.exe" );
+			Console.WriteLine( $"{sig}" );
+		}
+
+		[TestMethod]
+		public void SteamUILanguage()
+		{
+			var cnt = Utils.SteamUILanguage;
+			Console.WriteLine( $"{cnt}" );
+		}
+
+		[TestMethod]
+		public void IsSteamRunningInVR()
+		{
+			var cnt = Utils.IsSteamRunningInVR;
+			Console.WriteLine( $"{cnt}" );
+		}
+
+		[TestMethod]
+		public void IsSteamInBigPictureMode()
+		{
+			var cnt = Utils.IsSteamInBigPictureMode;
+			Console.WriteLine( $"{cnt}" );
+		}
+
+		[TestMethod]
+		public void VrHeadsetStreaming()
+		{
+			var cnt = Utils.VrHeadsetStreaming;
+			Console.WriteLine( $"{cnt}" );
+		}
+
+	}
+
+}
diff --git a/Facepunch.Steamworks.Test/Facepunch.Steamworks.Test.csproj b/Facepunch.Steamworks.Test/Facepunch.Steamworks.Test.csproj
index 24f643c..0695875 100644
--- a/Facepunch.Steamworks.Test/Facepunch.Steamworks.Test.csproj
+++ b/Facepunch.Steamworks.Test/Facepunch.Steamworks.Test.csproj
@@ -89,6 +89,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Client\AchievementsTest.cs" />
+    <Compile Include="Client\UtilsTest.cs" />
     <Compile Include="Client\ClientTest.cs" />
     <Compile Include="Client\LobbyTest.cs" />
     <Compile Include="Client\RichPresenceTest.cs" />
diff --git a/Facepunch.Steamworks/Redux/Utils.cs b/Facepunch.Steamworks/Redux/Utils.cs
index 8f6b2c3..35862ff 100644
--- a/Facepunch.Steamworks/Redux/Utils.cs
+++ b/Facepunch.Steamworks/Redux/Utils.cs
@@ -53,9 +53,14 @@ internal static void InstallEvents()
 		/// </summary>
 		public static event Action<bool> OnGamepadTextInputDismissed;
 
-
+		/// <summary>
+		/// Returns the number of seconds since the application was active
+		/// </summary>
 		public static uint SecondsSinceAppActive => steamutils.GetSecondsSinceAppActive();
 
+		/// <summary>
+		/// Returns the number of seconds since the user last moved the mouse etc
+		/// </summary>
 		public static uint SecondsSinceComputerActive => steamutils.GetSecondsSinceComputerActive();
 
 		// the universe this client is connecting to
@@ -104,7 +109,7 @@ public static byte[] GetImageRGBA( int image )
 		/// <summary>
 		/// Returns true if we're using a battery (ie, a laptop not plugged in)
 		/// </summary>
-		public static bool UsingBatteryPower => steamutils.GetCurrentBatteryPower() == 255;
+		public static bool UsingBatteryPower => steamutils.GetCurrentBatteryPower() != 255;
 
 		/// <summary>
 		/// Returns battery power [0-1]
@@ -134,8 +139,8 @@ public static NotificationPosition OverlayNotificationPosition
 		}
 
 		/// <summary>
-		/// Returns true if the overlay is running & the user can access it. The overlay process could take a few seconds to
-		/// start & hook the game process, so this function will initially return false while the overlay is loading.
+		/// Returns true if the overlay is running and the user can access it. The overlay process could take a few seconds to
+		/// start and hook the game process, so this function will initially return false while the overlay is loading.
 		/// </summary>
 		public static bool IsOverlayEnabled => steamutils.IsOverlayEnabled();