There was some recent discussion of using 3S (three cells in series) lipo batteries with the KX3 on either the NASOTA Yahoo group or the QRP-L list (I can’t remember). The gist is that the KX3 will keep running with a lower input voltage. A fully charged 3S battery will provide 12.6V. To get ten watts output, you need 12-14V, but closer to the 14V. Less than 12V, the KX3 drops to 5W power output.
I was browsing the HobbyKing website for 3S batteries and discovered they offer pickup at a few discrete locations. One of these locations is in Tualatin, OR. This is close enough to warrant save the $7 on shipping.
