Purchased and installed two new OEM batteries for this device
The UPS works great and you can see in the pictures it lights up a lamp
The Tripp Lite SM6284 is an internal or manufacturing model number for the Tripp Lite SMART500RT1U SmartPro Line-Interactive UPS System
It is a slim, rack-mountable battery backup unit designed to provide surge protection and emergency power to enterprise IT, network, and data center hardware