EcoFlow’s certified refurbished brand outlet on eBay has up to 50% off across 60-plus products, and an extra 30% off via the promo code “POWERON”. The pictured Certified Refurb EcoFlow DELTA 2 Smart Generator w/ Extra Battery drops to $259 after the code ($440 off). The coupon ends June 9, and has a $600 max discount. Shop Now at eBay