Today I started with a full basket of unlit Original Charcoal briquettes. I then loaded with about 1/2 chimney of lit OC briquettes. I was able to get about 6 1/2 hours on my offset smoker. What I liked most was that it ALL burned up. There was only fine ash left and a small piece of hickory that was used for smoking. If it is still on sale when I get back to Home Depot I'll buy more.
After the ribs were done
After I picked up the basket and dropped it only seconds after the above picture
After letting it burn out on its own