Hi all, tks for all your answers to my question.
I have bought today a 7AH-12 battery. It is small and weight is not so bad. Maybe next weekend I will use it with my K1. Again, tks for all your answers and best 73. CT1DRB David Quental > David wrote: > >> My K1 has a KBT1 an Internal battery Adapter and I have 4 >> rechargeable batteries at my own. What could be better, buy more >> rechargeable batteries or a small battery, however bigger than AA >> batteries, to operate with ? > I have a ten-year-old K1. I used the KBT1 for about 18 months and > then removed it. I don't like potential chemical corrosion sources > (batteries) inside my K1, the KBT1 micro-speaker is far inferior to > the standard K1 speaker, and the K1 just looks so much better with > the standard top cover and speaker. > > For short-time operation, I use an external 10-cell (arranged 5x2) > AA-cell holder with a six-inch cable going to the K1. I use NiMH > cells. But for most situations where the additional weight isn't > objectionable, I use a small 4- to 5-Ah 12-volt sealed-lead-acid > (SLA) battery. One charge lasts for a long operating interval. > SLA batteries are available in smaller size and capacity, but I've > been happiest with what I described. I always use rechargeable > batteries of some sort. > > My K1 (with LCD backlight, KNB1, KAT1, KFL1-4) on 10.12 MHz > using a 12-volt DC supply consumes: > > On RECEIVE > Low AF Out 60 mA > High AF Out 120 mA > > On TRANSMIT > 0.1 Watt (min) 280 mA > 1.0 Watt 450 mA > 2.0 Watt 550 mA > 3.0 Watt 650 mA > 4.0 Watt 750 mA > 5.0 Watt 850 mA > 7.0 Watt (max) 1200 mA > > The best efficiency seems to be around the 5 Watt output setting. > It is apparent that AA-cell capacity can be depleted fairly quickly. > It pays to have adequate battery capacity. That's why I like the > 5-Ah SLA battery. > > 73, > Mike / KK5F > K1 S/N 175 > ______________________________________________________________ > 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
