Re: [Elecraft] Batteries for K1
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 Out60 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:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Batteries for K1
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 Out60 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Batteries for K1.
Hello all, I have a lovely K1 and I am about to start my SOTA activitions, maybe next saturday. 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 ? Any answer will be welcome here. Best 73 to all. CT1DRB David Quental __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
