I'm still thinking about the KX1 internal battery issue. Any interest in = this? Internal NiMH cells and an internal switcher (I found room for = it). The KX1 would run full RF power ( 3 watts) and under typical use = the battery pack will run for 2 hours. Receive only would run for 7 = hours. I know this isn't long but for day hike use it is. Dave WX7G