Hi Arno, The Bioenno 12V/3Ah LiFePo4 should work nicely with your KX3 and provide several hours of 10W operation.
I use a similar 3.3 Ah from http://www.batteryspace.com/lifepo4cellspacks.aspx and have been quite satisfied with it. John KN5L ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html