This unit is tested and working. Buying any used UPS, the batteries are not new and most often not reliable. The replacement batteries range from $75 -$125. All power jumpers are included. The Tripp Lite Smart 3000 (220v) is a reliable and efficient uninterruptible power supply unit designed for reliable power back up. The Smart 3000 model is known for its durable construction and consistent performance, making it a valuable component for ensuring power protection in critical systems. Ideal for businesses and home offices, this unit provides peace of mind against unexpected power outages.