Bruce, You may have already seen this on the Outback Users Forum, in the thread titled, "How do I use every last electron?" http://www.outbackpower.com/forum/viewtopic.php?f=29&t=2865 Most of the discussion applies to the FX60 & FX80, but I think there were some tips for the MX60 as well. Dick Ratico Solarwind Electric Bradford, VT