Re: [Elecraft] External battery for KX2, field day and SOTA
Mine are also LiFePO4 and extremely trouble free Jim On Monday, June 1, 2020, 9:17:16 PM PDT, Eric Norris wrote: Jim, These were LiFePO4 (Lithium Iron Nanophosphate) A123 packs, sold then in 4S1P, 4S2P, and 4S4P configuration. Totally different animal from what you are talking about, and as I said, no internal balancing. They had balancing harnesses for hooking up to Cellpro 4S and 10S chargers. The individual cells were much larger than 26650 cells. 73 Eric WD6DBM __ 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] External battery for KX2, field day and SOTA
Jim, These were LiFePO4 (Lithium Iron Nanophosphate) A123 packs, sold then in 4S1P, 4S2P, and 4S4P configuration. Totally different animal from what you are talking about, and as I said, no internal balancing. They had balancing harnesses for hooking up to Cellpro 4S and 10S chargers. The individual cells were much larger than 26650 cells. 73 Eric WD6DBM On Mon, Jun 1, 2020, 8:35 PM Jim wrote: > I have two of the original A123 SLA style 7AH sized batteries, model > ALM-12V7 and use them with my KX3. They have eight ANR26650 cells arranged > in a 4S2P config. The ALM-12V7s can be arranged in series or parallel > systems the same as ordinary SLAs. > > Internal to the battery package are the following circuit functions > > - Overcharge protection and pre-charge circuits > - 30 A plastic blade fuse (replaceable) > - Charger detection and voltage regulation > - Micro controller and cell balancing > - Over discharge protection > > Any discharge due to the internal circuits is so small that they recommend > charging every three years if they are kept in storage. > > An ordinary lead acid charger can be used or a fixed 14.4V 10A power > supply. There was no specialized A123 charger made for these batteries. > > Which model of A123 battery did you have? I think some company used to > sell home made packs based on individual A123 sells and that company hawked > their own charger for their packs. > > Jim > > > > > > > > On Monday, June 1, 2020, 6:06:09 PM PDT, elecraft-requ...@mailman.qth.net > wrote: > > ---------- > > Message: 1 > Date: Mon, 1 Jun 2020 07:42:45 -0700 > From: Eric Norris > Subject: Re: [Elecraft] External battery for KX2, field day and SOTA > > --The original A123 batteries use a balancing system built > into their specialized chargers, and they hold their > charge much longer. > > 73 Eric WD6DBM > > > __ 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] External battery for KX2, field day and SOTA (Eric Norris)
I have two of the original A123 SLA style 7AH sized batteries, model ALM-12V7 and use them with my KX3. They have eight ANR26650 cells arranged in a 4S2P config. The ALM-12V7s can be arranged in series or parallel systems the same as ordinary SLAs. Internal to the battery package are the following circuit functions - Overcharge protection and pre-charge circuits- 30 A plastic blade fuse (replaceable)- Charger detection and voltage regulation- Micro controller and cell balancing- Over discharge protection Any discharge due to the internal circuits is so small that they recommend charging every three years if they are kept in storage. An ordinary lead acid charger can be used or a fixed 14.4V 10A power supply. There was no specialized A123 charger made for these batteries. Which model of A123 battery did you have? I think some company used to sell home made packs based on individual A123 sells and that company hawked their own charger for their packs. Jim On Monday, June 1, 2020, 6:06:09 PM PDT, elecraft-requ...@mailman.qth.net wrote: -- Message: 1 Date: Mon, 1 Jun 2020 07:42:45 -0700 From: Eric Norris Subject: Re: [Elecraft] External battery for KX2, field day and SOTA --The original A123 batteries use a balancing system built into their specialized chargers, and they hold their charge much longer. 73 Eric WD6DBM __ 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] External battery for KX2, field day and SOTA
Morning Doug, Like many others who responded to you, I use Bioenno LFP batteries to power my radios in the field. I currently have three packs, a 3Ah, a 15Ah, and a new 60Ah. The latter was purchased for Field Day and will power my K3, station computer, and whatnot in the field. (Yes, I’m going to camp for FD.) I just received a new-to-me KX2 and have operated it with the internal battery pack a few times. For a short operation, like playing at the park, I think that power source is adequate. For a more substantial operation, additional power is appropriate. As far as I can tell, the packs are radio-quiet and the 15Ah pack, which I’ve had for a year, is doing fine. I considered a Talentcell for portable ops, too. But elected to buy a known-to-me quantity and instead bought a Bioenno 3Ah pack. Have fun and 73 de AG7TX... David Thompson, AG7TX Jack of All Trades Master of None dbthomp...@me.com > On Jun 1, 2020, at 04:39, Doug Daniels wrote: > > I'm hoping to get my KX2 for Field Day, and am looking to get an external > battery to use for FD as well as SOTA. I'm looking at the Talentcell and > Bienno 12v 12Ah ones. Anything specific to the KX2 I need to know about > external batteries? I know the internal one is more or less proprietary. > > -- > > --... ...-- > Doug K1RDD > __ > 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 dbthomp...@me.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] External battery for KX2, field day and SOTA
I, too, use Bioenno batteries. They work well, and I have tested the ones I own under load, and the advertised capacity ratings are pretty accurate. My one gripe is that the balancing circuitry is built into the pack. This causes them to slowly self-discharge. The original A123 batteries use a balancing system built into their specialized chargers, and they hold their charge much longer. However, A123 filed Ch11, and they are now back in production by a new owner. I don't know how good the new ones are, but they are available once again through Buddipole. My now very old original A123 packs still test out at 85% of their original capacity. They were expensive, but they were a good investment. I've had them, I think, about 10 years--I used to use the S4P1 to power my beloved KX1, which at 14.2V put out bookoo power! 73 Eric WD6DBM On Mon, Jun 1, 2020, 5:41 AM Tommy wrote: > I use a Bioenno 9ah battery with mine, works great. > > Tom - KB2SMS > > > On 6/1/20 7:39 AM, Doug Daniels wrote: > > I'm hoping to get my KX2 for Field Day, and am looking to get an external > > battery to use for FD as well as SOTA. I'm looking at the Talentcell and > > Bienno 12v 12Ah ones. Anything specific to the KX2 I need to know about > > external batteries? I know the internal one is more or less proprietary. > > > __ > 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 norrislawfi...@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] External battery for KX2, field day and SOTA
The internal battery isn't proprietary. Elecraft has some made for them with the power connector they use. I bought some spares from Tenergy a while back and soldered on my own connectors. I'm not sure why, at the time Elecraft had a shipping policy about more than two batteries I believe. I have several Bioenno batteries I use on my KX2 and other radios. They work great! I expect you could run the entire Field Day with the 12Ah one. Tim N9PUZ On Mon, Jun 1, 2020 at 6:42 AM Doug Daniels wrote: > I'm hoping to get my KX2 for Field Day, and am looking to get an external > battery to use for FD as well as SOTA. I'm looking at the Talentcell and > Bienno 12v 12Ah ones. Anything specific to the KX2 I need to know about > external batteries? I know the internal one is more or less proprietary. > > -- > > --... ...-- > Doug K1RDD > __ > 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 tim.n9...@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] External battery for KX2, field day and SOTA
I use a Bioenno 9ah battery with mine, works great. Tom - KB2SMS On 6/1/20 7:39 AM, Doug Daniels wrote: I'm hoping to get my KX2 for Field Day, and am looking to get an external battery to use for FD as well as SOTA. I'm looking at the Talentcell and Bienno 12v 12Ah ones. Anything specific to the KX2 I need to know about external batteries? I know the internal one is more or less proprietary. __ 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] External battery for KX2, field day and SOTA
Amazon is selling a 12v 6amp battery for $30 w/free shipping, fits in the palm of your hand. Ordered one last Friday to use w/KX3... 73 de Jose Douglas KB1TCD On 6/1/2020 7:39 AM, Doug Daniels wrote: I'm hoping to get my KX2 for Field Day, and am looking to get an external battery to use for FD as well as SOTA. I'm looking at the Talentcell and Bienno 12v 12Ah ones. Anything specific to the KX2 I need to know about external batteries? I know the internal one is more or less proprietary. __ 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
