Place the rinsed beans, onion, jalapeno, garlic, salt, pepper, and cumin in the crock of a 6-quart slow cooker. Pour in the water and chicken broth and stir to combine.
1 pound dry pinto beans, 1 onion, 1 jalapeño pepper, 4 cloves garlic, 1 tablespoon kosher salt, 1 teaspoon ground black pepper, ⅛ teaspoon ground cumin, 4 cups water, 2 cup low-sodium chicken broth