I can normally get 4 hours or so operating my K3 at 100 watts, doing (rapid fire "contest style") SSB POTA activations with 20 Ah Bioenno batteries.
73, Ken, KJ9B ________________________________ From: [email protected] <[email protected]> on behalf of Jim Brown via Elecraft <[email protected]> Sent: Monday, July 7, 2025 11:56 PM To: [email protected] <[email protected]> Subject: Re: [Elecraft] KXP-100/KX-3 integration 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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

