Re: "Using fully charged brand new NiMH batteries the radio simply turns itself off after I turn it on."
Several possibilities here. First be sure the battery connector is fully engaging the pins on the circuit board (reference Figure 8 of the KXBC3 Installation and Operation Instructions). Mine wasn't fully engaged and would occasionally become intermittent. Second, be sure the cells are good. Take them out and measure their individual voltages. They should be within about 0.1v of each other; also, any cells that are below 1.0v should be replaced. While a faulty cell may be flagged by the KXBC3 charger during charging, it is possible that one of them discharges very quickly after charging is complete. Are your cells relatively new and all of the same type? I was given an old set of 2500mah Ray-O-Vac NiMH cells, and they would discharge while sitting in the KX3 (or on the shelf for that matter) over a few days time causing the same symptoms you are seeing. Any of the modern "Low Self Discharge" NiMH cells should not exhibit this behavior, and will remain charged for a long period of time Mark KE6BB From: Jim Fitzpatrick<[email protected]> Sent: Tue, Dec 31, 2013 at 1:01 PM To: <[email protected]> Subject: [Elecraft] KX3 digital modes problem I recently purchased a KX3. I have made several hundred CW QSOs with it in the past several months. ... The other problem has been operating with batteries. Using fully charged brand new NiMH batteries the radio simply turns itself off after I turn it on. I have the BAT MIN set at 8.4V. I measure the battery charge at about 11V. This should be enough to keep it running, but it doesn't even after I have enabled all the power saving measures suggested in the manual. Loading it up with 8 brand new Duracell AA batteries gives me 12.2V, and it seems to work fine just as it should. AUTO OFF is set to infinite. I'd appreciate any constructive ideas. Thanks. Jim WI9WI ______________________________________________________________ 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 ______________________________________________________________ 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
