And yet more work.

src/resonantinduction/ResonantInduction.java

@@ -9,7 +9,7 @@ import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraftforge.common.Configuration;
 import net.minecraftforge.oredict.ShapedOreRecipe;
-import resonantinduction.battery.BatteryMultiblockManager;
+import resonantinduction.battery.BatteryManager;
 import resonantinduction.battery.BlockBattery;
 import resonantinduction.battery.ItemCapacitor;
 import resonantinduction.battery.TileEntityBattery;
@@ -164,7 +164,7 @@ public class ResonantInduction
 		GameRegistry.registerTileEntity(TileEntityEMContractor.class, blockEMContractor.getUnlocalizedName());
 		GameRegistry.registerTileEntity(TileEntityBattery.class, blockBattery.getUnlocalizedName());
 		
-		TickRegistry.registerTickHandler(new BatteryMultiblockManager(), Side.SERVER);
+		TickRegistry.registerTickHandler(new BatteryManager(), Side.SERVER);
 
 		ResonantInduction.proxy.registerRenderers();
 

src/resonantinduction/battery/BatteryManager.java

@@ -14,7 +14,7 @@ import resonantinduction.base.Vector3;
 import cpw.mods.fml.common.ITickHandler;
 import cpw.mods.fml.common.TickType;
 
-public class BatteryMultiblockManager implements ITickHandler
+public class BatteryManager implements ITickHandler
 {
 	public static final int WILDCARD = -1;
 	
@@ -37,7 +37,7 @@ public class BatteryMultiblockManager implements ITickHandler
     		if(tileEntity != null)
     		{
     			tileEntity.inventory = new HashSet<ItemStack>();
-    			tileEntity.inventoryID = -1;
+    			tileEntity.inventoryID = WILDCARD;
     		}
     	}
     	
@@ -51,7 +51,7 @@ public class BatteryMultiblockManager implements ITickHandler
      * @param inventoryID - inventory ID of the battery
      * @param fluid - cached fluid of the battery
      * @param inventory - inventory of the battery
-     * @param tileEntity - dynamic tank TileEntity
+     * @param tileEntity - battery TileEntity
      */
     public static void updateCache(int inventoryID, HashSet<ItemStack> inventory, TileEntityBattery tileEntity)
     {
@@ -153,12 +153,12 @@ public class BatteryMultiblockManager implements ITickHandler
 				{	
 					for(Vector3 obj : dynamicInventories.get(inventoryID).locations)
 					{
-						TileEntityBattery dynamicTank = (TileEntityBattery)obj.getTileEntity(world);
+						TileEntityBattery battery = (TileEntityBattery)obj.getTileEntity(world);
 						
-						if(dynamicTank != null)
+						if(battery != null)
 						{
-							dynamicTank.inventory = new HashSet<ItemStack>();
+							battery.inventory = new HashSet<ItemStack>();
-							dynamicTank.inventoryID = -1;
+							battery.inventoryID = WILDCARD;
 						}
 					}
 					

src/resonantinduction/battery/BatteryUpdateProtocol.java

@@ -7,7 +7,7 @@ import net.minecraft.tileentity.TileEntity;
 import net.minecraft.world.World;
 import net.minecraftforge.common.ForgeDirection;
 import resonantinduction.base.Vector3;
-import resonantinduction.battery.BatteryMultiblockManager.BatteryCache;
+import resonantinduction.battery.BatteryManager.BatteryCache;
 
 public class BatteryUpdateProtocol
 {
@@ -193,7 +193,7 @@ public class BatteryUpdateProtocol
 	}
 	
 	/**
-	 * Whether or not the block at the specified location is a viable node for a dynamic tank.
+	 * Whether or not the block at the specified location is a battery.
 	 * @param x - x coordinate
 	 * @param y - y coordinate
 	 * @param z - z coordinate
@@ -210,9 +210,9 @@ public class BatteryUpdateProtocol
 	}
 	
 	/**
-	 * Runs the protocol and updates all tanks that make a part of the dynamic tank.
+	 * Runs the protocol and updates all batteries that make a part of the multiblock battery.
 	 */
-	public void updateTanks()
+	public void updateBatteries()
 	{
 		loopThrough(pointer);
 		
@@ -231,13 +231,13 @@ public class BatteryUpdateProtocol
 				}
 			}
 			
-			int idFound = -1;
+			int idFound = BatteryManager.WILDCARD;
 			
 			for(Vector3 obj : structureFound.locations)
 			{
 				TileEntityBattery tileEntity = (TileEntityBattery)obj.getTileEntity(pointer.worldObj);
 				
-				if(tileEntity.inventoryID != -1)
+				if(tileEntity.inventoryID != BatteryManager.WILDCARD)
 				{
 					idFound = tileEntity.inventoryID;
 					break;
@@ -246,15 +246,15 @@ public class BatteryUpdateProtocol
 			
 			BatteryCache cache = new BatteryCache();
 			
-			if(idFound != -1)
+			if(idFound != BatteryManager.WILDCARD)
 			{
-				if(BatteryMultiblockManager.dynamicInventories.get(idFound) != null)
+				if(BatteryManager.dynamicInventories.get(idFound) != null)
 				{
-					cache = BatteryMultiblockManager.pullInventory(pointer.worldObj, idFound);
+					cache = BatteryManager.pullInventory(pointer.worldObj, idFound);
 				}
 			}
 			else {
-				idFound = BatteryMultiblockManager.getUniqueInventoryID();
+				idFound = BatteryManager.getUniqueInventoryID();
 			}
 			
 			structureFound.inventory = cache.inventory;

src/resonantinduction/battery/TileEntityBattery.java

@@ -6,11 +6,9 @@ package resonantinduction.battery;
 import java.util.HashSet;
 import java.util.Set;
 
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.inventory.IInventory;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
-import net.minecraftforge.fluids.FluidStack;
+import net.minecraft.nbt.NBTTagList;
 import resonantinduction.api.IBattery;
 import resonantinduction.base.TileEntityBase;
 
@@ -49,9 +47,17 @@ public class TileEntityBattery extends TileEntityBase
         {
 	        inventoryID = nbtTags.getInteger("inventoryID");
 	
-	        if(inventoryID != -1)
+	        if(inventoryID != BatteryManager.WILDCARD)
 	        {
-	        	//inventory
+	            NBTTagList tagList = nbtTags.getTagList("Items");
+	            inventory = new HashSet<ItemStack>();
+
+	            for(int tagCount = 0; tagCount < tagList.tagCount(); tagCount++)
+	            {
+	                NBTTagCompound tagCompound = (NBTTagCompound)tagList.tagAt(tagCount);
+
+                    inventory.add(ItemStack.loadItemStackFromNBT(tagCompound));
+	            }
 	        }
         }
     }
@@ -63,12 +69,32 @@ public class TileEntityBattery extends TileEntityBase
         
         nbtTags.setInteger("inventoryID", inventoryID);
         
-        //inventory
+        NBTTagList tagList = new NBTTagList();
+
+        for(ItemStack itemStack : inventory)
+        {
+            if(itemStack != null)
+            {
+                NBTTagCompound tagCompound = new NBTTagCompound();
+                itemStack.writeToNBT(tagCompound);
+                tagList.appendTag(tagCompound);
+            }
+        }
+
+        nbtTags.setTag("Items", tagList);
     }
 	
 	public void update()
 	{
-		
+		if(!worldObj.isRemote && (structure == null || !structure.didTick))
+		{
+			new BatteryUpdateProtocol(this).updateBatteries();
+			
+			if(structure != null)
+			{
+				structure.didTick = true;
+			}
+		}
 	}
 
 	public float getMaxEnergyStored()