Can I use a pair of alkaline batteries for the 3.3v supply?
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 I don't have a dock. Can I simply use a couple of batteries to fire up my Omega 2+? What's the tolerance on the 3.3v supply? Will 3.0 to 3.2 v work (i.e., 2 alkalines in series)? Thanks! 
 
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 I wouldn't recommend it. Better to get a 3.3v regulator and plug alkaline batteries (or 5v) into that.