Liebert® eXMTM has been designed to maximize the availability of secure power, leveraging Vertiv’s experience and expertise in developing high MTBF UPS solutions and Low MTTR through a Design for- Serviceability /Maintaina bility construction. There are numerous factor contributes to the reliability of Liebert® eXMTM. But, one of then is the rugged internal topology wherein the internal air channel is designed in such a way that internal hot air drives directly towards heat sink without distressing the PCB’s and other internal sensitive circuits consequently the improver service life of component prevent premature failure and ensue utmost reliability Liebert® eXMTM provides enhanced fault tolerance at partial load versus a traditional fixed capacity monolithic UPS. It can tolerate internal power module failures and still support a partial load without going to bypass. Liebert® eXMTM battery charger can deliver 15% of the nominal UPS power for battery recharge, so being able to provide adequate current to charge even batteries with a long backup time, thus making it ideal for prolong battery powered application.