Pre-soak your wood in water for a few hours before use and make sure your smoker is free from any dirt or grease from the last cookout.
Preheat the smoker till it reaches between 225F and 250F. Using a wood smoker will take around 20 to 30 minutes for your wood chunks to fire up and reach your desired temperature. In the case of electric smokers, just add pre-soaked wood chips to the chip compartment. The chips are only there for the smokiness they offer and not necessarily heat since the temperature is digitally controlled. To a large aluminum pan or Dutch oven, add your canned beans, including your canning liquid. Depending on the consistency you're trying to achieve, you can add a cup of water later on.
Place a cast-iron skillet on medium-high heat. Drizzle olive oil and cook bacon strips for 2-3 minutes on both sides and until edges turn a golden brown and they become crispy. Remove the bacon onto a paper towel to allow any excess fat or oil to drain. Then cut them up into halves.
To the same skillet, add your diced onions, peppers, and other veggies and sauté for a few minutes in the bacon fat until the onions caramelize.
Add the contents of the skillet to the beans. Then throw in the brown sugar, molasses, garlic powder, paprika, mustard, BBQ sauce, and apple cider vinegar. Combine ingredients properly.
Pop the aluminum pan in the smoker, leave it uncovered, so the beans get a maximal infusion of all that good smoke. Cook for 2 to 3 hours until the beans bubble and thicken up to like a syrup or glaze consistency. Remember to stir from time to time (i.e., every hour), so the beans don't burn.
Once fully cooked, leave to rest for 10 minutes, then serve warm as an accompanying dish to any barbecue you like.