Custom battery backups for MTP levitation worked correctly following power failure today for all spinning MTPS on site.  All isolation valves "safety" valves worked correctly and isolated valved-in MTPs from foreline header at loss of power -> Restarted QDP80s and MTPs and resumed pumping (YBM, Vertex, XBM, X-end).  Had to switch back to turbo for HAM6 and valve-out ion pump.  Had to restart aux. carts pumping HAM1 and GV10 annuli.