diff --git a/OpenRa.Game/Chrome.cs b/OpenRa.Game/Chrome.cs
index 7aacabe1f6..e3c2ee72a6 100644
--- a/OpenRa.Game/Chrome.cs
+++ b/OpenRa.Game/Chrome.cs
@@ -710,6 +710,10 @@ namespace OpenRa.Game
 			chromeRenderer.DrawSprite(specialBinSprite, new float2(0,14), PaletteType.Chrome);
 			chromeRenderer.Flush();
 			var y = 24;
+
+			string tooltipItem = null;
+			int2 tooltipPos = int2.Zero;
+
 			foreach (var sp in Game.LocalPlayer.SupportPowers)
 			{
 				var image = spsprites[sp.Key];
@@ -733,11 +737,50 @@ namespace OpenRa.Game
 							PaletteType.Chrome);
 					}
 
+					var rect = new Rectangle(5, y, 64, 48);
+					if (rect.Contains(lastMousePos.ToPoint()))
+					{
+						tooltipItem = sp.Key;
+						tooltipPos = drawPos.ToInt2() + new int2(72, 0) - Game.viewport.Location.ToInt2();
+					}
+
 					y += 51;
 				}
 			}
 
 			buildPaletteRenderer.Flush();
+
+			if (tooltipItem != null)
+				DrawSupportPowerTooltip(tooltipItem, tooltipPos);
+		}
+
+		string FormatTime(int ticks)
+		{
+			var seconds = ticks / 25;
+			var minutes = seconds / 60;
+
+			return "{0}:{1}".F(minutes, seconds % 60);
+		}
+
+		void DrawSupportPowerTooltip(string sp, int2 pos)
+		{
+			chromeRenderer.DrawSprite(tooltipSprite, pos, PaletteType.Chrome);
+			chromeRenderer.Flush();
+
+			var info = Rules.SupportPowerInfo[sp];
+
+			pos += new int2(5, 5);
+
+			renderer.DrawText2(info.Description, pos, Color.White);
+
+			var timer = "Charge Time: {0}".F(FormatTime(Game.LocalPlayer.SupportPowers[sp].RemainingTime));
+			DrawRightAligned(timer, pos + new int2((int)tooltipSprite.size.X - 10, 0), Color.White);
+
+			if (info.LongDesc != null)
+			{
+				pos += new int2(0, 25);
+				renderer.DrawText(info.LongDesc.Replace("\\n", "\n"), pos, Color.White);
+			}
 		}
 	}
 }
diff --git a/OpenRa.Game/SupportPower.cs b/OpenRa.Game/SupportPower.cs
index 2a6ff5ba56..1d4f6e548f 100644
--- a/OpenRa.Game/SupportPower.cs
+++ b/OpenRa.Game/SupportPower.cs
@@ -44,5 +44,9 @@ namespace OpenRa.Game
 				if (RemainingTime > 0) --RemainingTime;
 			}
 		}
+
+		public void Activate()
+		{
+		}
 	}
 }
diff --git a/units.ini b/units.ini
index fac05d0bd8..b3eca27c1d 100644
--- a/units.ini
+++ b/units.ini
@@ -826,7 +826,7 @@ InvulnerabilityPower
 [ParadropPower]			; comes free with first AFLD
 ChargeTime=7
 Description=Paratroopers
-LongDesc=A Badger drops a squad of Riflemen anywhere on the map
+LongDesc=A Badger drops a squad of Riflemen \nanywhere on the map
 Prerequisite=AFLD
 TechLevel=5
 Image=pinficon
@@ -844,7 +844,7 @@ GivenAuto=no
 [SonarPulsePower]		; picked up in a crate, or by spy -> spen/syrd
 ChargeTime=10
 Description=Sonar Pulse
-LongDesc=Reveals all submarines on the map for a short time.
+LongDesc=Reveals all submarines on the map for a \nshort time.
 OneShot=yes
 Powered=no
 Image=sonricon
@@ -854,7 +854,7 @@ GivenAuto=no
 [ChronoshiftPower]		; free with Chronosphere... sortof the point.
 ChargeTime=7
 Description=Chronoshift
-LongDesc=Temporarily teleports a vehicle across the map.
+LongDesc=Temporarily teleports a vehicle across \nthe map.
 Prerequisite=PDOX
 Image=warpicon
 TechLevel=12
@@ -887,7 +887,7 @@ TechLevel=12
 [InvulnerabilityPower]	; the point of IRON
 ChargeTime=11
 Description=Invulnerability
-LongDesc=Makes a single unit invulnerable for a short time.
+LongDesc=Makes a single unit invulnerable for a \nshort time.
 Image=infxicon
 Prerequisite=IRON
 TechLevel=12
\ No newline at end of file