Moseying through the threads, I didn't see much mention of Battery Back UPS. I've been partial to ONEAC in the past, but our new distributor doesn't carry them. Minuteman "XRT" or Minuteman "Enterprise" seem to be adequate conditioners (true sinewave means conditioned line...doesn't it?) and they are expandable. Any one have any experiences -good or bad- with Minuteman. How many- Volt Amps do I need for fully loaded ACS? Thanks for your time.