[floyd_2 (Dean)]

Just to answer my own question in case anyone else was wondering - this unit will run an AZ-EQ5 for about 2 1/2 hours of observing in AZ mode (ie. running both drives concurrently at all times) including initial setup and slews from object to object - loaded up and balanced with an AR127 and C9.25. I tend to look at objects for quite a while, so your mileage may vary depending on your viewing style. At 2 1/2 hours the battery was showing 34% and was, in my opinion, starting to deplete too quickly so it was time to turn it off and charge it up. Not bad for an ultra portable A123 power supply that you can jump start your car with. It'll get you by for a short session, but is certainly far too light weight for anything more than that.