Empty cans of beans into a large crock pot. Do not drain juice. Add Manwich, brown sugar, ketchup, and barbecue sauce. Stir together.
In a large skillet brown hamburger and sausage. Add onion and peppers long enough to soften.
Fry bacon separately and crumble into small pieces.
Mix meats and vegetables into bean mixture and allow to cook in slow cooker for approximately 2 hours on high. To speed up the cooking process cook on medium heat, on stove top, for about 30 minutes, instead of using the slow cooker.