Just an FYI - I have an APC model BX1500LCD. At full charge with my MAG5 return pump, one korilia nano for extra circulation, and the small pump that supplies my Aquafuge2 HOB fuge, I have 85 min of backup time. Unplugging the korilia had no effect, unplugging the fuge pump gave me 4 extra minutes.
With just the nano korilia and the fuge pump plugged in and unplugging the MAG5... I got 817 minutes!!! LMAO!! I wonder how my 36bow would do running only on a aquafuge 2 small HOB and a korilia nano??