On 7/7/2025 6:59 PM, mjrosen via Elecraft wrote:
  Considering adding the 100W amplifier which will only be used in the field. 
Not SOTA or hiking, car trips for POTA and, vacation use. I have a 20AH Bioenno 
battery that more than adequately powers KX-3 at 10-15W for QRP activations. 
I've considered 2 options: 1. Geta a higher capacity battery and run both radio 
and amp from one battery (think the 20AH will do?

A 20Ah LiFePO4 battery will go a long while, especially if you power the radio from it's internal battery pack, and especially if you don't CQ a lot. One of the KX3's many strengths is that it is very miserly of current draw on receive.

73, Jim K9YC
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