Re: [Elecraft] KX3 batteries

[Gwen Patton]

Unfortunately, like the Candle Stower, the Power Pot is no longer
available. There's a knockoff on Amazon that comes with a gas stove and a
small box wood stove, but I wouldn't trust it. It's got that typica "it
comes in a set" pricing that's probably twice what the pieces would cost if
purchased separately.

It looks like thermoelectric sources aren't good sellers. I'm pretty sure
that's because they're perceived as dedicated electrical generators, and
they're not. They make electricity from a side effect, and not a very
efficient one at that. The only reason to use one is to make use of the
waste heat from heating water for hot drinks or dehydrated food, which you
have to heat water for anyway. It's temperature *differential* that these
things run off anyway, and people don't get that. It's not a heat-engine
like a gas generator, or even a fuel cell, would be. It's highest
efficiency is when the water in the pot is coldest, not when it's hottest.
The benefit of using the hot water to make food or drink is that in order
to generate electricity best, you need to get rid of the hot water and put
in fresh cold water...so you might as well put the hot water to a good use
that doesn't waste all that energy. I don't use my Candle Stower when the
weather is hot, because that's when I'm least likely to want to have hot
coffee, and would probably rather drink the cold water to cool myself, than
pour it into a pot to heat it up. But in the Fall, or early Winter, sure!

This is why I researched the use of consumer-grade USB PD/QC power banks
for field use. They're lighter than other batteries, less bulky, more
durable, and usually cheaper. They only require the addition of a $10
trigger cable to run a 12V radio, and they are multitaskers, able to charge
your other USB devices as well. I love Bioennos and Talentcells, but I'd
rather carry a 20Ah PD power bank than my 12Ah LiFePO4 12v Talentcell. Out
of the box, my PD power bank can plug right into my phone, my watch, my
tablet, my Baofeng T1 HT, and the 3 flashlights I typically carry. Add the
trigger cable, and it can power my QRP rigs as well. To do that with my
12Ah Talentcell, I'd have to add a bunch of additional circuitry, and the
Talentcell is already at least 2X and often 3X the cost of that PD power
bank. And the power bank has more juice.

But I can also easily charge the USB bank with a USB solar panel. I'd need
an additional charge controller to do that with the Talentcell, even if I
could do it with the same panel, which I probably can't. The solar panel I
have is a folding one with dedicated USB out. There's no place to attach a
12v charge controller to it to charge the Talentcell. The USB bank doesn't
care. Run the cable to the microUSB in or the USB-C in, and it's happy to
sit and charge.

The only reason I mentioned the Thermoelectric option is because I already
have it. It may not be the best option, but it's an option I have.

-=-=-=-=-=-=-=-=-
73,
Gwen, NG3P


On Fri, Jul 2, 2021 at 3:17 PM Gwen Patton  wrote:

> Thanks, Walter. I hadn't known about the Power Pot. I have a Candle
> Stower, which does work, albeit slowly. I don't own a Biolite stove,
> myself, it's just one of the only other thermoelectric gadgets I knew about.
>
> -=-=-=-=-=-=-=-=-
> 73,
> Gwen, NG3P
>
>
> On Fri, Jul 2, 2021 at 3:12 PM Walter Underwood 
> wrote:
>
>> If that is the Biolite stove/charger, it isn’t a good stove or a good
>> charger. Detailed review here, the conclusion is:
>>
>> "If you want to cook with wood in the backcountry, get yourself a decent
>> wood stove or make your own. If you’re looking for a way to recharge USB
>> enabled devices, I’d recommend you use batteries or a rechargeable power
>> brick instead of the BioLite wood burning CampStove. This product is a
>> gimmick that will be shelved in your basement after a single outing."
>>
>> https://sectionhiker.com/biolite-campstove-the-substance-beyond-the-hype/
>> <
>> https://sectionhiker.com/biolite-campstove-the-substance-beyond-the-hype/
>> >
>>
>> On the other hand, the PowerPot appears to actually work, and could be
>> used with a good wood stove (SoloStove) or a camp stove. Here is the
>> conclusion from that review (same reviewer):
>>
>> "I’m impressed with the PowerPot. Quite impressed. This is one of the
>> most efficient power generating options available today for backpackers and
>> campers who are off-the-grid for extended periods of time but need
>> electricity to recharge battery-powered devices. If you’re using a solar
>> charger/battery pack combo like the PowerMonkey Extreme (16 ounces) or the
>> Goal Zero Guide 10 Plus Solar Kit (19 ounces) for backpacking adventures,
>> you should take a look at using the PowerPot instead. It’s a lighter weight
>> solution (14.1 ounces) that is seasonally and weather independent. Now if
>> they’d only come out with a still lighter and smaller UL version."
>>
>> https://sectionhiker.com/powerpot-review/ <
>> https://sectionhiker.com/powerpot-review/>

Re: [Elecraft] KX3 batteries

[Gwen Patton]

Thanks, Walter. I hadn't known about the Power Pot. I have a Candle Stower,
which does work, albeit slowly. I don't own a Biolite stove, myself, it's
just one of the only other thermoelectric gadgets I knew about.

-=-=-=-=-=-=-=-=-
73,
Gwen, NG3P


On Fri, Jul 2, 2021 at 3:12 PM Walter Underwood 
wrote:

> If that is the Biolite stove/charger, it isn’t a good stove or a good
> charger. Detailed review here, the conclusion is:
>
> "If you want to cook with wood in the backcountry, get yourself a decent
> wood stove or make your own. If you’re looking for a way to recharge USB
> enabled devices, I’d recommend you use batteries or a rechargeable power
> brick instead of the BioLite wood burning CampStove. This product is a
> gimmick that will be shelved in your basement after a single outing."
>
> https://sectionhiker.com/biolite-campstove-the-substance-beyond-the-hype/
>  >
>
> On the other hand, the PowerPot appears to actually work, and could be
> used with a good wood stove (SoloStove) or a camp stove. Here is the
> conclusion from that review (same reviewer):
>
> "I’m impressed with the PowerPot. Quite impressed. This is one of the most
> efficient power generating options available today for backpackers and
> campers who are off-the-grid for extended periods of time but need
> electricity to recharge battery-powered devices. If you’re using a solar
> charger/battery pack combo like the PowerMonkey Extreme (16 ounces) or the
> Goal Zero Guide 10 Plus Solar Kit (19 ounces) for backpacking adventures,
> you should take a look at using the PowerPot instead. It’s a lighter weight
> solution (14.1 ounces) that is seasonally and weather independent. Now if
> they’d only come out with a still lighter and smaller UL version."
>
> https://sectionhiker.com/powerpot-review/ <
> https://sectionhiker.com/powerpot-review/>
>
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
> > On Jul 2, 2021, at 11:19 AM, Julia Tuttle  wrote:
> >
> > Whoa, can you share a link to that thermoelectric one? It sounds super
> neat.
> >
> > On Fri, Jul 2, 2021, 14:17 Gwen Patton  wrote:
> >
> >> I saw that when you posted it, Howard. It's a neat system. I decided to
> go
> >> with a universal external battery solution. I have plenty of external PD
> >> and QC power from power banks that will also charge my other USB
> devices. I
> >> also have 3 different kinds of USB chargers for the power banks -- GaN
> AC
> >> charger, solar panel with USB output, and a thermoelectric USB charger
> that
> >> also makes hot water for coffee or dehydrated food. I suppose I can also
> >> count a USB car charger.
> >>
> >> -=-=-=-=-=-=-=-=-
> >> 73,
> >> Gwen, NG3P
> >>
> >>
> >> On Fri, Jul 2, 2021 at 10:56 AM Howard Zehr  wrote:
> >>
> >>> You might want to consider the option I describe in this blog entry.
> It
> >>> uses LifePO4 AA batteries and though they have to be charged outside
> the
> >>> rig, they are much more satisfactory in my opinion.
> >>> 73 Howard K4LXY
> >>> https://k4lxycw.wixsite.com/blog/blog <
> >>> https://k4lxycw.wixsite.com/blog/blog>
> >>>
> >>>
> >>> Howard Zehr
> >>> K4LXY
> >>> Radio blog:  https://k4lxycw.wixsite.com/blog/blog
> >>>
> >>> Photo gallery: www.howardzehr.com
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> __
> >>> Elecraft mailing list
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> >>> Help: http://mailman.qth.net/mmfaq.htm
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> >>> Please help support this email list: http://www.qsl.net/donate.html
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> >>>
> >> __
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Re: [Elecraft] KX3 batteries

[Gwen Patton]

Unfortunately, it was a Kickstarter, and they're gone now. But you can see
if there are any "Candle Stower" units for sale used. The original product
was the "Flame Stower", by

You'd do better with one of their competitors, BioLite.
https://www.bioliteenergy.com/

They have various stoves, fire pits, and the like, some with thermoelectric
USB power output.

73,
Gwen, NG3P

On Fri, Jul 2, 2021, 2:20 PM Julia Tuttle  wrote:

> Whoa, can you share a link to that thermoelectric one? It sounds super
> neat.
>
> On Fri, Jul 2, 2021, 14:17 Gwen Patton  wrote:
>
>> I saw that when you posted it, Howard. It's a neat system. I decided to go
>> with a universal external battery solution. I have plenty of external PD
>> and QC power from power banks that will also charge my other USB devices.
>> I
>> also have 3 different kinds of USB chargers for the power banks -- GaN AC
>> charger, solar panel with USB output, and a thermoelectric USB charger
>> that
>> also makes hot water for coffee or dehydrated food. I suppose I can also
>> count a USB car charger.
>>
>> -=-=-=-=-=-=-=-=-
>> 73,
>> Gwen, NG3P
>>
>>
>> On Fri, Jul 2, 2021 at 10:56 AM Howard Zehr  wrote:
>>
>> > You might want to consider the option I describe in this blog entry.  It
>> > uses LifePO4 AA batteries and though they have to be charged outside the
>> > rig, they are much more satisfactory in my opinion.
>> > 73 Howard K4LXY
>> > https://k4lxycw.wixsite.com/blog/blog <
>> > https://k4lxycw.wixsite.com/blog/blog>
>> >
>> >
>> > Howard Zehr
>> > K4LXY
>> > Radio blog:  https://k4lxycw.wixsite.com/blog/blog
>> >
>> > Photo gallery: www.howardzehr.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 ard...@gmail.com
>> >
>> __
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>
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Re: [Elecraft] KX3 batteries

[Walter Underwood]

If that is the Biolite stove/charger, it isn’t a good stove or a good charger. 
Detailed review here, the conclusion is:

"If you want to cook with wood in the backcountry, get yourself a decent wood 
stove or make your own. If you’re looking for a way to recharge USB enabled 
devices, I’d recommend you use batteries or a rechargeable power brick instead 
of the BioLite wood burning CampStove. This product is a gimmick that will be 
shelved in your basement after a single outing."

https://sectionhiker.com/biolite-campstove-the-substance-beyond-the-hype/ 


On the other hand, the PowerPot appears to actually work, and could be used 
with a good wood stove (SoloStove) or a camp stove. Here is the conclusion from 
that review (same reviewer):

"I’m impressed with the PowerPot. Quite impressed. This is one of the most 
efficient power generating options available today for backpackers and campers 
who are off-the-grid for extended periods of time but need electricity to 
recharge battery-powered devices. If you’re using a solar charger/battery pack 
combo like the PowerMonkey Extreme (16 ounces) or the Goal Zero Guide 10 Plus 
Solar Kit (19 ounces) for backpacking adventures, you should take a look at 
using the PowerPot instead. It’s a lighter weight solution (14.1 ounces) that 
is seasonally and weather independent. Now if they’d only come out with a still 
lighter and smaller UL version."

https://sectionhiker.com/powerpot-review/ 


wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jul 2, 2021, at 11:19 AM, Julia Tuttle  wrote:
> 
> Whoa, can you share a link to that thermoelectric one? It sounds super neat.
> 
> On Fri, Jul 2, 2021, 14:17 Gwen Patton  wrote:
> 
>> I saw that when you posted it, Howard. It's a neat system. I decided to go
>> with a universal external battery solution. I have plenty of external PD
>> and QC power from power banks that will also charge my other USB devices. I
>> also have 3 different kinds of USB chargers for the power banks -- GaN AC
>> charger, solar panel with USB output, and a thermoelectric USB charger that
>> also makes hot water for coffee or dehydrated food. I suppose I can also
>> count a USB car charger.
>> 
>> -=-=-=-=-=-=-=-=-
>> 73,
>> Gwen, NG3P
>> 
>> 
>> On Fri, Jul 2, 2021 at 10:56 AM Howard Zehr  wrote:
>> 
>>> You might want to consider the option I describe in this blog entry.  It
>>> uses LifePO4 AA batteries and though they have to be charged outside the
>>> rig, they are much more satisfactory in my opinion.
>>> 73 Howard K4LXY
>>> https://k4lxycw.wixsite.com/blog/blog <
>>> https://k4lxycw.wixsite.com/blog/blog>
>>> 
>>> 
>>> Howard Zehr
>>> K4LXY
>>> Radio blog:  https://k4lxycw.wixsite.com/blog/blog
>>> 
>>> Photo gallery: www.howardzehr.com
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> __
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to ard...@gmail.com
>>> 
>> __
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Re: [Elecraft] KX3 batteries

[Julia Tuttle]

Whoa, can you share a link to that thermoelectric one? It sounds super neat.

On Fri, Jul 2, 2021, 14:17 Gwen Patton  wrote:

> I saw that when you posted it, Howard. It's a neat system. I decided to go
> with a universal external battery solution. I have plenty of external PD
> and QC power from power banks that will also charge my other USB devices. I
> also have 3 different kinds of USB chargers for the power banks -- GaN AC
> charger, solar panel with USB output, and a thermoelectric USB charger that
> also makes hot water for coffee or dehydrated food. I suppose I can also
> count a USB car charger.
>
> -=-=-=-=-=-=-=-=-
> 73,
> Gwen, NG3P
>
>
> On Fri, Jul 2, 2021 at 10:56 AM Howard Zehr  wrote:
>
> > You might want to consider the option I describe in this blog entry.  It
> > uses LifePO4 AA batteries and though they have to be charged outside the
> > rig, they are much more satisfactory in my opinion.
> > 73 Howard K4LXY
> > https://k4lxycw.wixsite.com/blog/blog <
> > https://k4lxycw.wixsite.com/blog/blog>
> >
> >
> > Howard Zehr
> > K4LXY
> > Radio blog:  https://k4lxycw.wixsite.com/blog/blog
> >
> > Photo gallery: www.howardzehr.com
> >
> >
> >
> >
> >
> >
> >
> > __
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> > Help: http://mailman.qth.net/mmfaq.htm
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> >
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> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to ard...@gmail.com
> >
> __
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Re: [Elecraft] KX3 batteries

[Gwen Patton]

I saw that when you posted it, Howard. It's a neat system. I decided to go
with a universal external battery solution. I have plenty of external PD
and QC power from power banks that will also charge my other USB devices. I
also have 3 different kinds of USB chargers for the power banks -- GaN AC
charger, solar panel with USB output, and a thermoelectric USB charger that
also makes hot water for coffee or dehydrated food. I suppose I can also
count a USB car charger.

-=-=-=-=-=-=-=-=-
73,
Gwen, NG3P


On Fri, Jul 2, 2021 at 10:56 AM Howard Zehr  wrote:

> You might want to consider the option I describe in this blog entry.  It
> uses LifePO4 AA batteries and though they have to be charged outside the
> rig, they are much more satisfactory in my opinion.
> 73 Howard K4LXY
> https://k4lxycw.wixsite.com/blog/blog <
> https://k4lxycw.wixsite.com/blog/blog>
>
>
> Howard Zehr
> K4LXY
> Radio blog:  https://k4lxycw.wixsite.com/blog/blog
>
> Photo gallery: www.howardzehr.com
>
>
>
>
>
>
>
> __
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Re: [Elecraft] KX3 batteries

[Mark Goldberg]

LiFePO4s will stay at high enough voltage for most of the discharge cycle
to keep the KX3 above 15W. 9Ah will run it a long time.

Regards,

Mark


On Fri, Jun 28, 2019 at 1:14 PM Chris Waldrup  wrote:

> Will the Bioenno batteries have enough terminal voltage to get the 15W?
> I'm looking at a 9Ah unit and if so will stop by Gigaparts on the way home
> from work today and pick one up.
>
> Chris
> KD4PBJ
>
> > On Jun 25, 2019, at 9:46 AM, Walter Underwood 
> wrote:
> >
> > That may be, though the discharge curves on the data sheets seem very
> similar. Note that the two data sheets use different discharge rates, like
> 2000 mAh vs 2500 mAh. They both have the same specs for "Internal Impedance
> (after discharge to E.V.=1.0V)”: Approx. 25mΩ(at 1KHz). I have to admit
> that I have no idea what that means.
> >
> > Eneloop: https://eneloop101.com/wp-content/uploads/BK-3MCC-AE.pdf <
> https://eneloop101.com/wp-content/uploads/BK-3MCC-AE.pdf>
> > Eneloop Pro:
> https://eneloop101.com/wp-content/uploads/2017/02/BK-3HCC.pdf <
> https://eneloop101.com/wp-content/uploads/2017/02/BK-3HCC.pdf>
> >
> > These are for the latest generation of each.
> >
> > wunder
> > K6WRU
> > Walter Underwood
> > CM87wj
> > http://observer.wunderwood.org/ (my blog)
> >
> >> On Jun 25, 2019, at 6:10 AM, Chip Stratton 
> wrote:
> >>
> >> I think Eneloop Pro have a higher internal resistance than the regular
> Eneloop. In my experience, using both of them sequentially, the KX3 went
> more quickly to the enforced 5 watt maximum output with the Eneloop Pro
> cells compared to the standard Eneloop, despite the higher ultimate
> capacity of the Eneloop Pro. But, YMMV!
> >>
> >> Chip
> >> AE5KA
> >>
> >> On Mon, Jun 24, 2019 at 9:32 PM Walter Underwood  > wrote:
> >> Right, Eneloop Pro get 500 cycles instead of 2000 for regular Eneloop.
> But I’m OK with 500 charge cycles and getting 2550 mAh instead of 2000 mAh.
> >>
> >> The Wikipedia page for Eneloop is fairly informative.
> >>
> >> https://en.wikipedia.org/wiki/Eneloop <
> https://en.wikipedia.org/wiki/Eneloop>
> >>
> >> wunder
> >> K6WRU
> >> Walter Underwood
> >> CM87wj
> >> http://observer.wunderwood.org/  (my
> blog)
> >>
> >>> On Jun 24, 2019, at 5:15 PM, Dave Sublette  > wrote:
> >>>
> >>> IIRC, the Eneloop Pro has fewer recharge cycles than do the regular
> >>> Eneloops.
> >>>
> >>> K4TO
> >>>
>  On Mon, Jun 24, 2019 at 7:57 PM John Harper  > wrote:
> 
>  Panasonic Eneloop Pro
> 
> > Best KX3 batteries
> 
> > My old rechargeable batteries are failing.   Recommdation for
>  replacements?
> 
> 
>  John AE5X
>  https://ae5x.blogspot.com 
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Re: [Elecraft] KX3 batteries

[Chris Waldrup]

Will the Bioenno batteries have enough terminal voltage to get the 15W?
I'm looking at a 9Ah unit and if so will stop by Gigaparts on the way home from 
work today and pick one up. 

Chris
KD4PBJ

> On Jun 25, 2019, at 9:46 AM, Walter Underwood  wrote:
> 
> That may be, though the discharge curves on the data sheets seem very 
> similar. Note that the two data sheets use different discharge rates, like 
> 2000 mAh vs 2500 mAh. They both have the same specs for "Internal Impedance 
> (after discharge to E.V.=1.0V)”: Approx. 25mΩ(at 1KHz). I have to admit that 
> I have no idea what that means.
> 
> Eneloop: https://eneloop101.com/wp-content/uploads/BK-3MCC-AE.pdf 
> 
> Eneloop Pro: https://eneloop101.com/wp-content/uploads/2017/02/BK-3HCC.pdf 
> 
> 
> These are for the latest generation of each.
> 
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
> 
>> On Jun 25, 2019, at 6:10 AM, Chip Stratton  wrote:
>> 
>> I think Eneloop Pro have a higher internal resistance than the regular 
>> Eneloop. In my experience, using both of them sequentially, the KX3 went 
>> more quickly to the enforced 5 watt maximum output with the Eneloop Pro 
>> cells compared to the standard Eneloop, despite the higher ultimate capacity 
>> of the Eneloop Pro. But, YMMV!
>> 
>> Chip
>> AE5KA
>> 
>> On Mon, Jun 24, 2019 at 9:32 PM Walter Underwood > > wrote:
>> Right, Eneloop Pro get 500 cycles instead of 2000 for regular Eneloop. But 
>> I’m OK with 500 charge cycles and getting 2550 mAh instead of 2000 mAh.
>> 
>> The Wikipedia page for Eneloop is fairly informative.
>> 
>> https://en.wikipedia.org/wiki/Eneloop 
>> 
>> wunder
>> K6WRU
>> Walter Underwood
>> CM87wj
>> http://observer.wunderwood.org/  (my blog)
>> 
>>> On Jun 24, 2019, at 5:15 PM, Dave Sublette >> > wrote:
>>> 
>>> IIRC, the Eneloop Pro has fewer recharge cycles than do the regular
>>> Eneloops.
>>> 
>>> K4TO
>>> 
 On Mon, Jun 24, 2019 at 7:57 PM John Harper >>> > wrote:
 
 Panasonic Eneloop Pro
 
> Best KX3 batteries
 
> My old rechargeable batteries are failing.   Recommdation for
 replacements?
 
 
 John AE5X
 https://ae5x.blogspot.com 
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Re: [Elecraft] KX3 batteries

[Walter Underwood]

That may be, though the discharge curves on the data sheets seem very similar. 
Note that the two data sheets use different discharge rates, like 2000 mAh vs 
2500 mAh. They both have the same specs for "Internal Impedance (after 
discharge to E.V.=1.0V)”: Approx. 25mΩ(at 1KHz). I have to admit that I have no 
idea what that means.

Eneloop: https://eneloop101.com/wp-content/uploads/BK-3MCC-AE.pdf 

Eneloop Pro: https://eneloop101.com/wp-content/uploads/2017/02/BK-3HCC.pdf 


These are for the latest generation of each.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jun 25, 2019, at 6:10 AM, Chip Stratton  wrote:
> 
> I think Eneloop Pro have a higher internal resistance than the regular 
> Eneloop. In my experience, using both of them sequentially, the KX3 went more 
> quickly to the enforced 5 watt maximum output with the Eneloop Pro cells 
> compared to the standard Eneloop, despite the higher ultimate capacity of the 
> Eneloop Pro. But, YMMV!
> 
> Chip
> AE5KA
> 
> On Mon, Jun 24, 2019 at 9:32 PM Walter Underwood  > wrote:
> Right, Eneloop Pro get 500 cycles instead of 2000 for regular Eneloop. But 
> I’m OK with 500 charge cycles and getting 2550 mAh instead of 2000 mAh.
> 
> The Wikipedia page for Eneloop is fairly informative.
> 
> https://en.wikipedia.org/wiki/Eneloop 
> 
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/  (my blog)
> 
> > On Jun 24, 2019, at 5:15 PM, Dave Sublette  > > wrote:
> > 
> > IIRC, the Eneloop Pro has fewer recharge cycles than do the regular
> > Eneloops.
> > 
> > K4TO
> > 
> > On Mon, Jun 24, 2019 at 7:57 PM John Harper  > > wrote:
> > 
> >> Panasonic Eneloop Pro
> >> 
> >>> Best KX3 batteries
> >> 
> >>> My old rechargeable batteries are failing.   Recommdation for
> >> replacements?
> >> 
> >> 
> >> John AE5X
> >> https://ae5x.blogspot.com 
> >> __
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Re: [Elecraft] KX3 batteries

[Chip Stratton]

I think Eneloop Pro have a higher internal resistance than the regular
Eneloop. In my experience, using both of them sequentially, the KX3 went
more quickly to the enforced 5 watt maximum output with the Eneloop Pro
cells compared to the standard Eneloop, despite the higher ultimate
capacity of the Eneloop Pro. But, YMMV!

Chip
AE5KA

On Mon, Jun 24, 2019 at 9:32 PM Walter Underwood 
wrote:

> Right, Eneloop Pro get 500 cycles instead of 2000 for regular Eneloop. But
> I’m OK with 500 charge cycles and getting 2550 mAh instead of 2000 mAh.
>
> The Wikipedia page for Eneloop is fairly informative.
>
> https://en.wikipedia.org/wiki/Eneloop
>
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
> > On Jun 24, 2019, at 5:15 PM, Dave Sublette  wrote:
> >
> > IIRC, the Eneloop Pro has fewer recharge cycles than do the regular
> > Eneloops.
> >
> > K4TO
> >
> > On Mon, Jun 24, 2019 at 7:57 PM John Harper  wrote:
> >
> >> Panasonic Eneloop Pro
> >>
> >>> Best KX3 batteries
> >>
> >>> My old rechargeable batteries are failing.   Recommdation for
> >> replacements?
> >>
> >>
> >> John AE5X
> >> https://ae5x.blogspot.com
> >> __
> >> Elecraft mailing list
> >> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> >> Help: http://mailman.qth.net/mmfaq.htm
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> >>
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Re: [Elecraft] KX3 batteries

[Mark Goldberg]

I've brought the 3 Ah ones on aircraft multiple times and had no issues. I
brought a copy of the UN safety certification that I got from the battery
company but have never been asked for it.

The batteries did save me from having my bag checked once though. I put my
bag in the overhead. Someone else came by and moved my bag trying to get
theirs in the overhead and the overhead would not close. The flight
attendant, not knowing what happened wanted to check my bag. I stated it
had lithium batteries in it and she checked the bag belonging to the person
that moved my bag. I didn't have to argue at all. Karma!

LiFePO4 batteries are also safer than other Lithiums, but they seem to be
treated the same by the airlines and shipping companies.

73,

Mark
W7MLG

On Mon, Jun 24, 2019 at 7:23 PM Eric - Gmail 
wrote:

> The FAA rules on taking batteries on airplanes can be found in the
> document "Batteries Carried by Airline Passengers: Frequently Asked
> Questions" at
>
> www.faa.gov/about/office_org/headquarters_offices/ash/ash_programs/hazmat/passenger_info/media/Airline_passengers_and_batteries.pdf
>
> will allow you to take a battery as large as 160Wh. The larger Bioenno's
> (9AH and up) are over 100 Wh
>
>
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Re: [Elecraft] KX3 batteries

[Eric - Gmail]

The FAA rules on taking batteries on airplanes can be found in the 
document "Batteries Carried by Airline Passengers: Frequently Asked 
Questions" at 
www.faa.gov/about/office_org/headquarters_offices/ash/ash_programs/hazmat/passenger_info/media/Airline_passengers_and_batteries.pdf


"Lithium ion batteries (a.k.a.: rechargeable lithium, lithium polymer, 
LIPO, secondary lithium). Passengers may carry all
consumer-sized lithium ion batteries (up to 100 watt hours per battery). 
This size covers AA, AAA, cell phone, PDA, camera,
camcorder, handheld game, tablet, portable drill, and standard laptop 
computer batteries. The watt hours (Wh) rating is marked
on newer lithium ion batteries and is explained in #3 below. External 
chargers are also considered to be a battery.
With airline approval, devices can contain larger lithium ion batteries 
(101-160 watt hours per battery), but spares of this size are
limited to two batteries in carry-on baggage only. This size covers the 
largest aftermarket extended-life laptop batteries and
most lithium ion batteries for professional-grade audio/visual 
equipment."


Last month, I took a KX3 to Sint Maarten (PJ7). My battery was a Bioenno 
6AH, equivalent to 72 watt hours. It worked like a charm!


You need to check with your airline, as some -- but not all -- airlines 
will allow you to take a battery as large as 160Wh. The larger Bioenno's 
(9AH and up) are over 100 Wh


Bioenno has listings on their website of recommended batteries for most 
commonly available rigs, based on your duty cycle.


73,
Eric W3DQ

--
 Jim Brown wrote:

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


J
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Re: [Elecraft] KX3 batteries

[Walter Underwood]

Right, Eneloop Pro get 500 cycles instead of 2000 for regular Eneloop. But I’m 
OK with 500 charge cycles and getting 2550 mAh instead of 2000 mAh.

The Wikipedia page for Eneloop is fairly informative.

https://en.wikipedia.org/wiki/Eneloop

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jun 24, 2019, at 5:15 PM, Dave Sublette  wrote:
> 
> IIRC, the Eneloop Pro has fewer recharge cycles than do the regular
> Eneloops.
> 
> K4TO
> 
> On Mon, Jun 24, 2019 at 7:57 PM John Harper  wrote:
> 
>> Panasonic Eneloop Pro
>> 
>>> Best KX3 batteries
>> 
>>> My old rechargeable batteries are failing.   Recommdation for
>> replacements?
>> 
>> 
>> John AE5X
>> https://ae5x.blogspot.com
>> __
>> Elecraft mailing list
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Re: [Elecraft] KX3 batteries

[Dave Sublette]

IIRC, the Eneloop Pro has fewer recharge cycles than do the regular
Eneloops.

K4TO

On Mon, Jun 24, 2019 at 7:57 PM John Harper  wrote:

> Panasonic Eneloop Pro
>
> >Best KX3 batteries
>
> >My old rechargeable batteries are failing.   Recommdation for
> replacements?
>
>
> John AE5X
> https://ae5x.blogspot.com
> __
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Re: [Elecraft] KX3 batteries

[Charlie T]

If that charge cycle theory floating around were true, an average car
battery wouldn't make it three years in a commuter vehicle.
Not sure I buy into that as my plain old (cheap)  #24 car batteries I use
with a solar charger typically give me over 10 years of service.

73, Charlie k3ICH




-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of Bob N3MNT
Sent: Saturday, December 29, 2018 9:32 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 batteries

I would guess that max # of charge cycles never comes into play in most Ham
Radio related battery failures.  It is more than likely that it is simply
age or abuse.  Over the years I doubt if 5% of my battery failures were due
to exceeding the number of charge cycles.  



--
Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] KX3 batteries

[Bob N3MNT]

I would guess that max # of charge cycles never comes into play in most Ham
Radio related battery failures.  It is more than likely that it is simply
age or abuse.  Over the years I doubt if 5% of my battery failures were due
to exceeding the number of charge cycles.  



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Re: [Elecraft] KX3 - Batteries

[steve]

I use:
With the Elecraft NiMH charger...

 *  2550mAh type, 2450mAh min, Ni-MH High Capacity pre-charged
   rechargeable battery
 *  Recharge up to 500 times
 *  Maintain 85% of their charge up to 1 year (when not in use)
 *  No memory effect - batteries can be recharged when fully, or
   partially discharged
 *  Work in extreme temperatures down to -4 DegreeF

Panasonic BK-3HCCA8BA*Eneloop Pro AA High Capacity Ni-MH *Pre-Charged 
Rechargeable Batteries, 8-Pack

http://www.amazon.com/dp/B00JHKSL28/ref=wl_it_dp_o_pd_nS_ttl?_encoding=UTF8colid=28VPZ85K0BU48coliid=I1TVX5ZVH8C4MBpsc=1

I also use an external battery pack to run 10W:
A123 homemade battery pack {4 cells - cost about $40}
http://www.a123rc.com/goods-101-8+PCS+Nano-Phosphate+LiFePO4+Original+A123+ANR26650M1A+Cell.html

73, steve WB3LGC

On 11-May-15 2:46 PM, Harry Yingst via Elecraft wrote:

I was considering getting the charger board and putting in rechargeable 
batteries but the though of them leaking and damaging the KX3 has shied me away 
from that.


I was curious about what others are using for batteries for the KX3. Preferably 
in some sort of an external pack.


Thank you




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Re: [Elecraft] [KX3] Batteries - rechargeable AA's

[Steve KC8QVO]

Thanks for the info on the batteries. I went through some of the ones I have
and the last batch I got are Sanyos (ordered online) and they say Japan on
them. I may just charge these up and see how they work, I think they are
around 2 years old (I used them in my camera and HT before).

On a side note, 

Instead of making an external battery case... I was thinking of using the
ones inside the rig. Has anyone tapped in to the wires for these and run an
external plug for a charger? Is there anything I have to be careful with? 

I have a Micro M+ solar charge controller that I use with my SLA and was
thinking of running a wire from the batter cases, through the 2m antenna
port (plug right now), and put a Power Pole on the end. The controller has
diodes in it so the current only goes one way. 

Another thought is my panel is made out of some Powerfilm panels (10 5omA
strips). Last time I was out on the trials I strapped the panel to my pack.
It wasn't in direct sunlight, but it was working while I was hiking. Now,
how about one of those gyroscope mounts that tracks the sun? That might make
my solar charging more efficient on the go HI. 

Steve, KC8QVO



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Re: [Elecraft] [KX3] Batteries - rechargeable AA's

[Rick Tavan]

They're working well for me in light duty so far.

Rick

--
Rick Tavan
iPhone

On Oct 21, 2012, at 10:36 PM, hawley, charles j jr c-haw...@illinois.edu 
wrote:

 I am using PowerEx IMEDION AA 2400mAh. Same claims as the Eneloop and seem to 
 be as good or better if you believe the reviews.
 Anyone else try these?
 
 Chuck, KE9UW
 aka Jack, BMW Motorcycles BMWMOA #224
 
 
 From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on 
 behalf of Rich [reh...@ix.netcom.com]
 Sent: Sunday, October 21, 2012 8:33 PM
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] [KX3] Batteries - rechargeable AA's
 
 Steve, the advice I got, a combination of list advice and internet
 reviews, is to go with the low self-discharge NiMH made in Japan, and
 the Sanyo Eneloop seem to have many followers, with the top of that line
 the Sanyo Eneloop XX batteries.  Advice was to stay away from the
 Chinese products as too variable.
 
 I could not find XXs locally, and settled for the Batteries Plus
 Japanese NiMH batteries this week. No reference to discharge.  I may
 regret that.  Will buy a set of the XXs when I can.  Too early for reviews.
 
 Rich
 NU6T
 
 On 10/21/2012 4:34 PM, Steve KC8QVO wrote:
 I have a 3 day backpacking trip coming up next weekend and will be taking my
 KX3 along with my solar panel/charge controller.
 
 In the past I have used a 7Ah SLA with the rig (works pretty well) but it is
 heavy. I want to switch out to 8 AA's this trip to see how it works out.
 
 What recommendations on NiMh AA cells do you all have that I can source
 locally? I have bought some batteries that have been decent and some that
 are terrible over the years, the best ones I found were at Radio Shack. What
 others have you had good luck with? I'd rather stay away from Walmart and
 other convenience stores. How about Batteries Plus? I haven't ever bought
 batteries from them before (cell type, my SLA came from there).
 
 My trip takes me along the Appalachian Trail and around Sugarland Mountain
 in TN/NC. I'll be sure to get some pictures.
 
 Steve, KC8QVO
 
 
 
 --
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 http://elecraft.365791.n2.nabble.com/KX3-Batteries-rechargeable-AA-s-tp7564426.html
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Re: [Elecraft] [KX3] Batteries - rechargeable AA's

[Steve KC8QVO]

Well I put my AA batteries inside and I ran my wire out the 2m antenna port
hole. We'll see how it works. I have the batteries cycling right now - 3
cycles so tomorrow they should be good. The next step - seeing how well they
hold up. This might have to wait for the trail unfortunately. I am real
short on time between work and getting ready for my trip when I get home. 

Steve, KC8QVO



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Re: [Elecraft] [KX3] Batteries - rechargeable AA's

[Rich]

Steve, the advice I got, a combination of list advice and internet 
reviews, is to go with the low self-discharge NiMH made in Japan, and 
the Sanyo Eneloop seem to have many followers, with the top of that line 
the Sanyo Eneloop XX batteries.  Advice was to stay away from the 
Chinese products as too variable.

I could not find XXs locally, and settled for the Batteries Plus 
Japanese NiMH batteries this week. No reference to discharge.  I may 
regret that.  Will buy a set of the XXs when I can.  Too early for reviews.

Rich
NU6T

On 10/21/2012 4:34 PM, Steve KC8QVO wrote:
 I have a 3 day backpacking trip coming up next weekend and will be taking my
 KX3 along with my solar panel/charge controller.

 In the past I have used a 7Ah SLA with the rig (works pretty well) but it is
 heavy. I want to switch out to 8 AA's this trip to see how it works out.

 What recommendations on NiMh AA cells do you all have that I can source
 locally? I have bought some batteries that have been decent and some that
 are terrible over the years, the best ones I found were at Radio Shack. What
 others have you had good luck with? I'd rather stay away from Walmart and
 other convenience stores. How about Batteries Plus? I haven't ever bought
 batteries from them before (cell type, my SLA came from there).

 My trip takes me along the Appalachian Trail and around Sugarland Mountain
 in TN/NC. I'll be sure to get some pictures.

 Steve, KC8QVO



 --
 View this message in context: 
 http://elecraft.365791.n2.nabble.com/KX3-Batteries-rechargeable-AA-s-tp7564426.html
 Sent from the Elecraft mailing list archive at Nabble.com.
 __
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Re: [Elecraft] [KX3] Batteries - rechargeable AA's

[Gary]

I've been following the KX3 battery threads from a distance since the
beginning and would like to offer my own suggestion. Hopefully I'm not
duplicating previous info.

I have several portable transceivers with AA battery cases. My current
battery choice for most of them is the Sanyo 2700mAh AA. I have a couple
dozen in daily use and have been very satisfied with them overall. In some
radios they don't perform well but in most I've used they work very well.
I've been purchasing them from http://www.batteriesamerica.com and
charging/cycling them with a Powerex MH-C9000 charger/analyzer. If anyone
has already tried these in a KX3 please let me know how it worked out.

By the way, http://www.batteriesamerica.com has the eneloop XX batteries
as well.
73,
Gary
N6LRV

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rich
Sent: Sunday, October 21, 2012 6:33 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [KX3] Batteries - rechargeable AA's

Steve, the advice I got, a combination of list advice and internet 
reviews, is to go with the low self-discharge NiMH made in Japan, and 
the Sanyo Eneloop seem to have many followers, with the top of that line 
the Sanyo Eneloop XX batteries.  Advice was to stay away from the 
Chinese products as too variable.

I could not find XXs locally, and settled for the Batteries Plus 
Japanese NiMH batteries this week. No reference to discharge.  I may 
regret that.  Will buy a set of the XXs when I can.  Too early for reviews.

Rich
NU6T


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Re: [Elecraft] [KX3] Batteries - rechargeable AA's

[hawley, charles j jr]

I am using PowerEx IMEDION AA 2400mAh. Same claims as the Eneloop and seem to 
be as good or better if you believe the reviews.
Anyone else try these?

Chuck, KE9UW
aka Jack, BMW Motorcycles BMWMOA #224


From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on 
behalf of Rich [reh...@ix.netcom.com]
Sent: Sunday, October 21, 2012 8:33 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [KX3] Batteries - rechargeable AA's

Steve, the advice I got, a combination of list advice and internet
reviews, is to go with the low self-discharge NiMH made in Japan, and
the Sanyo Eneloop seem to have many followers, with the top of that line
the Sanyo Eneloop XX batteries.  Advice was to stay away from the
Chinese products as too variable.

I could not find XXs locally, and settled for the Batteries Plus
Japanese NiMH batteries this week. No reference to discharge.  I may
regret that.  Will buy a set of the XXs when I can.  Too early for reviews.

Rich
NU6T

On 10/21/2012 4:34 PM, Steve KC8QVO wrote:
 I have a 3 day backpacking trip coming up next weekend and will be taking my
 KX3 along with my solar panel/charge controller.

 In the past I have used a 7Ah SLA with the rig (works pretty well) but it is
 heavy. I want to switch out to 8 AA's this trip to see how it works out.

 What recommendations on NiMh AA cells do you all have that I can source
 locally? I have bought some batteries that have been decent and some that
 are terrible over the years, the best ones I found were at Radio Shack. What
 others have you had good luck with? I'd rather stay away from Walmart and
 other convenience stores. How about Batteries Plus? I haven't ever bought
 batteries from them before (cell type, my SLA came from there).

 My trip takes me along the Appalachian Trail and around Sugarland Mountain
 in TN/NC. I'll be sure to get some pictures.

 Steve, KC8QVO



 --
 View this message in context: 
 http://elecraft.365791.n2.nabble.com/KX3-Batteries-rechargeable-AA-s-tp7564426.html
 Sent from the Elecraft mailing list archive at Nabble.com.
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