Re: [Elecraft] KX3 won't go above 10W
Thank you. Gigaparts is local to me and I see they have the Bioennos in stock!! Chris > On Jun 24, 2019, at 4:35 PM, Jim Brown wrote: > >> On 6/24/2019 12:59 PM, Mark Goldberg wrote: >> Go with LiFePO4 cells > > Yes. This ham-friendly company sells a wide range of LiFePO4 batteries. > Charge before you leave home (all Li batteries require a charger designed for > their specific chemistry, voltage, and capacity), connect to your KX2/3 > external power jack. Choose the capacity/weight that suits your planned use. > > $50 will get you 3Ah that weighs 13 oz; add $15 for the charger. A 6Ah > battery goes for $80, approximately twice the weight. I paid about $195 for a > 20Ah battery that weighs 5.4#, +$20 for a faster charger. > > https://www.bioennopower.com/collections/12v-series-lifepo4-batteries > > 73, Jim K9YC > > __ > 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 > Message delivered to kd4...@gmail.com __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 won't go above 10W
On 6/24/2019 12:59 PM, Mark Goldberg wrote: Go with LiFePO4 cells Yes. This ham-friendly company sells a wide range of LiFePO4 batteries. Charge before you leave home (all Li batteries require a charger designed for their specific chemistry, voltage, and capacity), connect to your KX2/3 external power jack. Choose the capacity/weight that suits your planned use. $50 will get you 3Ah that weighs 13 oz; add $15 for the charger. A 6Ah battery goes for $80, approximately twice the weight. I paid about $195 for a 20Ah battery that weighs 5.4#, +$20 for a faster charger. https://www.bioennopower.com/collections/12v-series-lifepo4-batteries 73, Jim K9YC __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 won't go above 10W
Go with LiFePO4 cells. Four cells will keep the voltage between 12 and 14.4 V from 10% to 100% state of charge and most of the time the voltage is between 13 and 13.5 V. I use small ones (3 AH )for backpack portable operation, 20 AH for fixed portable and my RV has 400 Ah to run the rig forever! The KX3 stays at the max 15W almost all of the time. No fuss, just works, and they keep their charge for months. Small ones start at about $50. Regards, Mark On Mon, Jun 24, 2019 at 12:40 PM Fred Soop wrote: > I have looked at the power issue (even though I'm not yet a KX3 owner) and > with NiMH cells at 1.2 V, the 8 cell internal battery holder would only be > 9.6 V. I'm considering an external battery pack with (2) 6 cell holders for > 12 cells total. That would be 14.4 V total. A single series diode would > bring that down to 13.7 V. The NiMH cells do start at 1.5 V with full > charge for a short time, so some additional series diodes would be needed > with a fresh charge and could be switched out as the cell voltage drops to > 1.2 V. A voltmeter and rotary switch with 5 diodes would do the job. > > 73 > Fred Soop AC9RQ > > __ > 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 > Message delivered to marklgoldb...@gmail.com > __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 won't go above 10W
KX3 requires at least 13.8 Volts to TX 12-15 Watts. Sent from my iPhone ...nr4c. bill > On Jun 22, 2019, at 1:43 PM, Chris Waldrup wrote: > > Yes sir using 7AH gel cell. > Just found out the issue as it works to 15W on a bench supply so the issue > was pointed out to me by a kind list member that this is intentional limiting > while on lower capacity batteries. > > Chris > >> On Jun 22, 2019, at 1:16 PM, Scott Manthe wrote: >> >> Are you using batteries? >> >> 73, >> Scott N9AA >> >> >> On 6/22/19 12:57 PM, Chris Waldrup wrote: Hi, I have a brand new KX3 we are using here at the Knightlites FD event in Raleigh. In pre operations events some of the guys are helping me set up (we are using 5W for the event) but in the future I would like full 15W capability. We can't get it to go above 10W using the power control. Any ideas? Thanks in advance. Chris KD4PBJ >>> __ >>> 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 >>> Message delivered to scott.man...@gmail.com >>> >> >> __ >> 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 >> Message delivered to kd4...@gmail.com > __ > 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 > Message delivered to n...@widomaker.com __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 won't go above 10W
Hi Chris I use LiFePo4 batteries The voltage is higher and I can transmit higher power for example 15 watts. Bioenopower makes some nice ones. Good luck Richard __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 won't go above 10W
Yes sir using 7AH gel cell. Just found out the issue as it works to 15W on a bench supply so the issue was pointed out to me by a kind list member that this is intentional limiting while on lower capacity batteries. Chris > On Jun 22, 2019, at 1:16 PM, Scott Manthe wrote: > > Are you using batteries? > > 73, > Scott N9AA > > > On 6/22/19 12:57 PM, Chris Waldrup wrote: >>> Hi, >>> >>> I have a brand new KX3 we are using here at the Knightlites FD event in >>> Raleigh. >>> In pre operations events some of the guys are helping me set up (we are >>> using 5W for the event) but in the future I would like full 15W capability. >>> We can't get it to go above 10W using the power control. >>> Any ideas? >>> Thanks in advance. >>> >>> Chris >>> KD4PBJ >> __ >> 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 >> Message delivered to scott.man...@gmail.com >> > > __ > 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 > Message delivered to kd4...@gmail.com __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 won't go above 10W
Are you using batteries? 73, Scott N9AA On 6/22/19 12:57 PM, Chris Waldrup wrote: Hi, I have a brand new KX3 we are using here at the Knightlites FD event in Raleigh. In pre operations events some of the guys are helping me set up (we are using 5W for the event) but in the future I would like full 15W capability. We can't get it to go above 10W using the power control. Any ideas? Thanks in advance. Chris KD4PBJ __ 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 Message delivered to scott.man...@gmail.com __ 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 Message delivered to arch...@mail-archive.com
