minor fixes, begin work on TileChargingTable

common/buildcraft/core/robots/EntityRobot.java

@@ -657,7 +657,7 @@ public class EntityRobot extends EntityRobotBase implements
 	public boolean isItemValidForSlot(int var1, ItemStack var2) {
 		return inv[var1] == null
 				|| (inv[var1].isItemEqual(var2) && inv[var1].isStackable() && inv[var1].stackSize
-						+ var2.stackSize <= inv[var1].getItem().getItemStackLimit());
+						+ var2.stackSize <= inv[var1].getItem().getItemStackLimit(inv[var1]));
 	}
 
 	@Override

common/buildcraft/silicon/TileChargingTable.java

@@ -0,0 +1,49 @@
+package buildcraft.silicon;
+
+import buildcraft.api.tiles.IHasWork;
+import buildcraft.core.utils.StringUtils;
+import cofh.api.energy.IEnergyContainerItem;
+import net.minecraft.item.ItemStack;
+
+public class TileChargingTable extends TileLaserTableBase implements IHasWork {
+    @Override
+    public int getRequiredEnergy() {
+        ItemStack stack = this.getStackInSlot(0);
+        if (stack != null && stack.getItem() != null && stack.getItem() instanceof IEnergyContainerItem) {
+            IEnergyContainerItem containerItem = (IEnergyContainerItem) stack.getItem();
+            return containerItem.getMaxEnergyStored(stack) - containerItem.getEnergyStored(stack);
+        }
+
+        return 0;
+    }
+
+    @Override
+    public boolean hasWork() {
+        return getRequiredEnergy() > 0;
+    }
+
+    @Override
+    public boolean canCraft() {
+        return hasWork();
+    }
+
+    @Override
+    public int getSizeInventory() {
+        return 1;
+    }
+
+    @Override
+    public String getInventoryName() {
+        return StringUtils.localize("tile.chargingTableBlock.name");
+    }
+
+    @Override
+    public boolean hasCustomInventoryName() {
+        return false;
+    }
+
+    @Override
+    public boolean isItemValidForSlot(int slot, ItemStack stack) {
+        return slot == 0 && stack != null && stack.getItem() != null && stack.getItem() instanceof IEnergyContainerItem;
+    }
+}