This is a heavy, transformer based inverter made for off grid and on grid both.  This makes it a hybrid inverter.  The Schneider XW PRO 6848 is battery based for any nominal 48V battery including lithium Iron Phosphate (LiFePO4).  

In this video I put the inverter through rigorous load testing.  Will it meet the spec in the manual?  I throw power tools on it, water heaters, space heaters, etc.  I try to load this XW PRO.

Chapters: 0:00 Intro 2:00 Overload Duration test on 240V 4:56 Power Tools on Inverter, 12" Miter Saw 7:59 Welding off grid 11:21 L1-N, Load Imbalance Testing 21:36 Conclusion