APC SMTL1500RM3UC Smart-UPS™ with lithium-ion batteries saves up to 47% in Total Cost of Ownership (TCO) over the lifetime of the UPS. Battery life is increased 2X. Reduced maintenance cost and improved battery performance in temperatures up to 104°F. UPS management options include Powerchute™ Business Edition, APC SmartConnect, Network Management Cards and EcoStruxure IT. The additional benefit of a 12-inch short-depth chassis allows this UPS to be installed in any 4-post rack and most wall-mount racks.