Step 1: Pick 2 of Any Kind of Battery
Step 2: Get Some Steel Wool
Step 3: Put Batteries Together
You can tape them together in the middle to make it easier to hold if you wish.
Step 4: Apply Steel Wool to Both Ends of Batteries
You may to blow on it to get it to catch on fire and then you can put it with your kindling or put it under your fire set up.