Dell Outlet Business cuts 20% to 25% off select factory-refurbished laptops, desktops, and tablets via the coupon codes listed below. Plus, many items qualify for free shipping. They're among the best percent-off discounts we've seen from Dell Outlet Business on these systems in recent weeks. (We saw 25% off a smaller selection of refurbished laptops and desktops last month.) Refurbished computers carry a 1-year Dell warranty. Deal ends June 2. The deals: