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My KX3 Battery Approach

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Phil Wheeler-2

My KX3 Battery Approach

While I have a 5 Amp-hr Lithium Ion battery and
use it, and also high-capacity Eneloops inside my
KX3 (with the battery charger option) my preferred
approach is to use ten external Eneloops in a
battery holder made to hold ten AA cells, this
sort of thing:

http://www.amazon.com/gp/product/B00AZTUI7Q/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

That way I have no power limitations, it's easy to
recharge the batteries (I have two Maha chargers,
one 4 cell and one 8 cell, so I always have the
ten needed spares available). Works good with a
number of rigs (K1, KX1, etc.)

While the capacity is only 2 A-h or so (vs. 5 or
higher with some of the newer, more exotic
batteries out there) this works for me -- and the
cells can be used for other things like a camera
flash gun. And easy to change out the cells to
fresh ones.

Phil W7OX
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David Cutter

Re: My KX3 Battery Approach

..and you can buy AA cells anywhere in the world. I run my KX1 that way.

BTW that's a very expensive battery holder. I bought a couple of these in
the UK - not normally known for cheaper prices:
http://www.maplin.co.uk/p/10-aa-battery-box-rk45y

73

David
G3UNA

----- Original Message -----
From: "Phil Wheeler" <[hidden email]>
To: <[hidden email]>; "Elecraft Reflector" <[hidden email]>
Sent: Friday, July 11, 2014 9:04 PM
Subject: [Elecraft] My KX3 Battery Approach

> While I have a 5 Amp-hr Lithium Ion battery and use it, and also
> high-capacity Eneloops inside my KX3 (with the battery charger option) my
> preferred approach is to use ten external Eneloops in a battery holder
> made to hold ten AA cells, this sort of thing:
>
> http://www.amazon.com/gp/product/B00AZTUI7Q/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1
>
> That way I have no power limitations, it's easy to recharge the batteries
> (I have two Maha chargers, one 4 cell and one 8 cell, so I always have the
> ten needed spares available). Works good with a number of rigs (K1, KX1,
> etc.)
>
> While the capacity is only 2 A-h or so (vs. 5 or higher with some of the
> newer, more exotic batteries out there) this works for me -- and the cells
> can be used for other things like a camera flash gun. And easy to change
> out the cells to fresh ones.
>
> Phil W7OX

Phil Wheeler-2

Re: My KX3 Battery Approach

Right! The flexibility is good, and I have quite a
few Eneloops on hand.

Yes, $10 is a bit pricy, David. Those are not
exactly what I bought; I just searched Amazon for
a link with an image; bought mine in a local
store. The 8-cell version is more common, but ten
is a better choice for our rigs!

73, Phil W7OX

On 7/11/14, 2:39 PM, David Cutter wrote:

> ..and you can buy AA cells anywhere in the
> world. I run my KX1 that way.
>
> BTW that's a very expensive battery holder. I
> bought a couple of these in the UK - not
> normally known for cheaper prices:
> http://www.maplin.co.uk/p/10-aa-battery-box-rk45y
>
> 73
>
> David
> G3UNA
>
> ----- Original Message ----- From: "Phil
> Wheeler" <[hidden email]>
> To: <[hidden email]>; "Elecraft Reflector"
> <[hidden email]>
> Sent: Friday, July 11, 2014 9:04 PM
> Subject: [Elecraft] My KX3 Battery Approach
>
>
>> While I have a 5 Amp-hr Lithium Ion battery and
>> use it, and also high-capacity Eneloops inside
>> my KX3 (with the battery charger option) my
>> preferred approach is to use ten external
>> Eneloops in a battery holder made to hold ten
>> AA cells, this sort of thing:
>>
>> http://www.amazon.com/gp/product/B00AZTUI7Q/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1
>>
>>
>> That way I have no power limitations, it's easy
>> to recharge the batteries (I have two Maha
>> chargers, one 4 cell and one 8 cell, so I
>> always have the ten needed spares available).
>> Works good with a number of rigs (K1, KX1, etc.)
>>
>> While the capacity is only 2 A-h or so (vs. 5
>> or higher with some of the newer, more exotic
>> batteries out there) this works for me -- and
>> the cells can be used for other things like a
>> camera flash gun. And easy to change out the
>> cells to fresh ones.
>>
>> Phil W7OX
>
>

Jeff Herr

Re: My KX3 Battery Approach

look at this, free shipping!
http://www.amazon.com/SODIAL-TM-Cells-Battery-Holder/dp/B00DFQRTT6/ref=sr_1_
5?s=electronics&ie=UTF8&qid=1405120731&sr=1-5&keywords=10+cell+battery+holde
r

it is a good idea

-----Original Message-----
From: Elecraft [mailto:[hidden email]] On Behalf Of Phil
Wheeler
Sent: Friday, July 11, 2014 14:49 PM
To: David Cutter; [hidden email]; Elecraft Reflector
Subject: Re: [Elecraft] My KX3 Battery Approach

Right! The flexibility is good, and I have quite a few Eneloops on hand.

Yes, $10 is a bit pricy, David. Those are not exactly what I bought; I just
searched Amazon for a link with an image; bought mine in a local store. The
8-cell version is more common, but ten is a better choice for our rigs!

73, Phil W7OX

On 7/11/14, 2:39 PM, David Cutter wrote:

> ..and you can buy AA cells anywhere in the world. I run my KX1 that
> way.
>
> BTW that's a very expensive battery holder. I bought a couple of
> these in the UK - not normally known for cheaper prices:
> http://www.maplin.co.uk/p/10-aa-battery-box-rk45y
>
> 73
>
> David
> G3UNA
>
> ----- Original Message ----- From: "Phil Wheeler" <[hidden email]>
> To: <[hidden email]>; "Elecraft Reflector"
> <[hidden email]>
> Sent: Friday, July 11, 2014 9:04 PM
> Subject: [Elecraft] My KX3 Battery Approach
>
>
>> While I have a 5 Amp-hr Lithium Ion battery and use it, and also
>> high-capacity Eneloops inside my KX3 (with the battery charger
>> option) my preferred approach is to use ten external Eneloops in a
>> battery holder made to hold ten AA cells, this sort of thing:
>>
>> http://www.amazon.com/gp/product/B00AZTUI7Q/ref=oh_aui_detailpage_o07
>> _s00?ie=UTF8&psc=1
>>
>>
>> That way I have no power limitations, it's easy to recharge the
>> batteries (I have two Maha chargers, one 4 cell and one 8 cell, so I
>> always have the ten needed spares available).
>> Works good with a number of rigs (K1, KX1, etc.)
>>
>> While the capacity is only 2 A-h or so (vs. 5 or higher with some of
>> the newer, more exotic batteries out there) this works for me -- and
>> the cells can be used for other things like a camera flash gun. And
>> easy to change out the cells to fresh ones.
>>
>> Phil W7OX
>
>

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Phil Wheeler-2

Re: My KX3 Battery Approach

I looked there. it appears to hold 8 cells, not
ten. Plus ships from Hong Kong, so a bit of a wait
:-)

The 10-cell holders seem a bit hard to find. In
fact, I'd looked and not found one -- so I was
quite surprised to see one in my local store and
grabbed it. My old standby is a 10 AA holder
which came with an old Icom 02-AT!

Phil W7OX

On 7/11/14, 4:20 PM, Jeff Herr wrote:

> look at this, free shipping!
> http://www.amazon.com/SODIAL-TM-Cells-Battery-Holder/dp/B00DFQRTT6/ref=sr_1_
> 5?s=electronics&ie=UTF8&qid=1405120731&sr=1-5&keywords=10+cell+battery+holde
> r
>
> it is a good idea
>
> -----Original Message-----
> From: Elecraft [mailto:[hidden email]] On Behalf Of Phil
> Wheeler
> Sent: Friday, July 11, 2014 14:49 PM
> To: David Cutter; [hidden email]; Elecraft Reflector
> Subject: Re: [Elecraft] My KX3 Battery Approach
>
> Right! The flexibility is good, and I have quite a few Eneloops on hand.
>
> Yes, $10 is a bit pricy, David. Those are not exactly what I bought; I just
> searched Amazon for a link with an image; bought mine in a local store. The
> 8-cell version is more common, but ten is a better choice for our rigs!
>
> 73, Phil W7OX
>
> On 7/11/14, 2:39 PM, David Cutter wrote:
>> ..and you can buy AA cells anywhere in the world. I run my KX1 that
>> way.
>>
>> BTW that's a very expensive battery holder. I bought a couple of
>> these in the UK - not normally known for cheaper prices:
>> http://www.maplin.co.uk/p/10-aa-battery-box-rk45y
>>
>> 73
>>
>> David
>> G3UNA
>>
>> ----- Original Message ----- From: "Phil Wheeler" <[hidden email]>
>> To: <[hidden email]>; "Elecraft Reflector"
>> <[hidden email]>
>> Sent: Friday, July 11, 2014 9:04 PM
>> Subject: [Elecraft] My KX3 Battery Approach
>>
>>
>>> While I have a 5 Amp-hr Lithium Ion battery and use it, and also
>>> high-capacity Eneloops inside my KX3 (with the battery charger
>>> option) my preferred approach is to use ten external Eneloops in a
>>> battery holder made to hold ten AA cells, this sort of thing:
>>>
>>> http://www.amazon.com/gp/product/B00AZTUI7Q/ref=oh_aui_detailpage_o07
>>> _s00?ie=UTF8&psc=1
>>>
>>>
>>> That way I have no power limitations, it's easy to recharge the
>>> batteries (I have two Maha chargers, one 4 cell and one 8 cell, so I
>>> always have the ten needed spares available).
>>> Works good with a number of rigs (K1, KX1, etc.)
>>>
>>> While the capacity is only 2 A-h or so (vs. 5 or higher with some of
>>> the newer, more exotic batteries out there) this works for me -- and
>>> the cells can be used for other things like a camera flash gun. And
>>> easy to change out the cells to fresh ones.
>>>
>>> Phil W7OX
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html Message
> delivered to [hidden email]
>
>

Elecraft mailing list

Re: My KX3 Battery Approach

You can find the 10-cell on ebay. It does come from China and takes a
few weeks. But they're cheap.
72, Doug -- K0DXV

On 7/11/2014 6:11 PM, Phil Wheeler wrote:

> I looked there. it appears to hold 8 cells, not ten. Plus ships from
> Hong Kong, so a bit of a wait :-)
>
> The 10-cell holders seem a bit hard to find. In fact, I'd looked and
> not found one -- so I was quite surprised to see one in my local store
> and grabbed it. My old standby is a 10 AA holder which came with an
> old Icom 02-AT!
>
> Phil W7OX
>
> On 7/11/14, 4:20 PM, Jeff Herr wrote:
>> look at this, free shipping!
>> http://www.amazon.com/SODIAL-TM-Cells-Battery-Holder/dp/B00DFQRTT6/ref=sr_1_
>>
>> 5?s=electronics&ie=UTF8&qid=1405120731&sr=1-5&keywords=10+cell+battery+holde
>>
>> r
>>
>> it is a good idea
>>
>> -----Original Message-----
>> From: Elecraft [mailto:[hidden email]] On Behalf Of
>> Phil
>> Wheeler
>> Sent: Friday, July 11, 2014 14:49 PM
>> To: David Cutter; [hidden email]; Elecraft Reflector
>> Subject: Re: [Elecraft] My KX3 Battery Approach
>>
>> Right! The flexibility is good, and I have quite a few Eneloops on hand.
>>
>> Yes, $10 is a bit pricy, David. Those are not exactly what I bought;
>> I just
>> searched Amazon for a link with an image; bought mine in a local
>> store. The
>> 8-cell version is more common, but ten is a better choice for our rigs!
>>
>> 73, Phil W7OX
>>
>> On 7/11/14, 2:39 PM, David Cutter wrote:
>>> ..and you can buy AA cells anywhere in the world. I run my KX1 that
>>> way.
>>>
>>> BTW that's a very expensive battery holder. I bought a couple of
>>> these in the UK - not normally known for cheaper prices:
>>> http://www.maplin.co.uk/p/10-aa-battery-box-rk45y
>>>
>>> 73
>>>
>>> David
>>> G3UNA
>>>
>>> ----- Original Message ----- From: "Phil Wheeler" <[hidden email]>
>>> To: <[hidden email]>; "Elecraft Reflector"
>>> <[hidden email]>
>>> Sent: Friday, July 11, 2014 9:04 PM
>>> Subject: [Elecraft] My KX3 Battery Approach
>>>
>>>
>>>> While I have a 5 Amp-hr Lithium Ion battery and use it, and also
>>>> high-capacity Eneloops inside my KX3 (with the battery charger
>>>> option) my preferred approach is to use ten external Eneloops in a
>>>> battery holder made to hold ten AA cells, this sort of thing:
>>>>
>>>> http://www.amazon.com/gp/product/B00AZTUI7Q/ref=oh_aui_detailpage_o07
>>>> _s00?ie=UTF8&psc=1
>>>>
>>>>
>>>> That way I have no power limitations, it's easy to recharge the
>>>> batteries (I have two Maha chargers, one 4 cell and one 8 cell, so I
>>>> always have the ten needed spares available).
>>>> Works good with a number of rigs (K1, KX1, etc.)
>>>>
>>>> While the capacity is only 2 A-h or so (vs. 5 or higher with some of
>>>> the newer, more exotic batteries out there) this works for me -- and
>>>> the cells can be used for other things like a camera flash gun. And
>>>> easy to change out the cells to fresh ones.
>>>>
>>>> Phil W7OX
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message
>> delivered to [hidden email]
>>
>>
>
> ______________________________________________________________
> Elecraft mailing list
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> Help: http://mailman.qth.net/mmfaq.htm
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>

ejkkjh

Re: My KX3 Battery Approach

Mouser has them, the 10 cell.
Emory WM3M

-----Original Message-----
From: Doug Person via Elecraft
Sent: Friday, July 11, 2014 9:01 PM
To: [hidden email]
Subject: Re: [Elecraft] My KX3 Battery Approach

You can find the 10-cell on ebay. It does come from China and takes a
few weeks. But they're cheap.
72, Doug -- K0DXV

On 7/11/2014 6:11 PM, Phil Wheeler wrote:

> I looked there. it appears to hold 8 cells, not ten. Plus ships from Hong
> Kong, so a bit of a wait :-)
>
> The 10-cell holders seem a bit hard to find. In fact, I'd looked and not
> found one -- so I was quite surprised to see one in my local store and
> grabbed it. My old standby is a 10 AA holder which came with an old Icom
> 02-AT!
>
> Phil W7OX
>
> On 7/11/14, 4:20 PM, Jeff Herr wrote:
>> look at this, free shipping!
>> http://www.amazon.com/SODIAL-TM-Cells-Battery-Holder/dp/B00DFQRTT6/ref=sr_1_
>> 5?s=electronics&ie=UTF8&qid=1405120731&sr=1-5&keywords=10+cell+battery+holde
>> r
>>
>> it is a good idea
>>
>> -----Original Message-----
>> From: Elecraft [mailto:[hidden email]] On Behalf Of
>> Phil
>> Wheeler
>> Sent: Friday, July 11, 2014 14:49 PM
>> To: David Cutter; [hidden email]; Elecraft Reflector
>> Subject: Re: [Elecraft] My KX3 Battery Approach
>>
>> Right! The flexibility is good, and I have quite a few Eneloops on hand.
>>
>> Yes, $10 is a bit pricy, David. Those are not exactly what I bought; I
>> just
>> searched Amazon for a link with an image; bought mine in a local store.
>> The
>> 8-cell version is more common, but ten is a better choice for our rigs!
>>
>> 73, Phil W7OX
>>
>> On 7/11/14, 2:39 PM, David Cutter wrote:
>>> ..and you can buy AA cells anywhere in the world. I run my KX1 that
>>> way.
>>>
>>> BTW that's a very expensive battery holder. I bought a couple of
>>> these in the UK - not normally known for cheaper prices:
>>> http://www.maplin.co.uk/p/10-aa-battery-box-rk45y
>>>
>>> 73
>>>
>>> David
>>> G3UNA
>>>
>>> ----- Original Message ----- From: "Phil Wheeler" <[hidden email]>
>>> To: <[hidden email]>; "Elecraft Reflector"
>>> <[hidden email]>
>>> Sent: Friday, July 11, 2014 9:04 PM
>>> Subject: [Elecraft] My KX3 Battery Approach
>>>
>>>
>>>> While I have a 5 Amp-hr Lithium Ion battery and use it, and also
>>>> high-capacity Eneloops inside my KX3 (with the battery charger
>>>> option) my preferred approach is to use ten external Eneloops in a
>>>> battery holder made to hold ten AA cells, this sort of thing:
>>>>
>>>> http://www.amazon.com/gp/product/B00AZTUI7Q/ref=oh_aui_detailpage_o07
>>>> _s00?ie=UTF8&psc=1
>>>>
>>>>
>>>> That way I have no power limitations, it's easy to recharge the
>>>> batteries (I have two Maha chargers, one 4 cell and one 8 cell, so I
>>>> always have the ten needed spares available).
>>>> Works good with a number of rigs (K1, KX1, etc.)
>>>>
>>>> While the capacity is only 2 A-h or so (vs. 5 or higher with some of
>>>> the newer, more exotic batteries out there) this works for me -- and
>>>> the cells can be used for other things like a camera flash gun. And
>>>> easy to change out the cells to fresh ones.
>>>>
>>>> Phil W7OX
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message
>> delivered to [hidden email]
>>
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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Chip Stratton

Re: My KX3 Battery Approach

The problem I have found with AA cell holders of the 10 cell variety is
that there was unacceptable voltage drop under load. I tried this with the
KX1 and was not satisfied. I think it will take a pretty high quality cell
holder to get around that problem, which resides around the contacts and
interconnects.

Good Luck!
Chip
Ae5ka
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hb9brj

Re: My KX3 Battery Approach

Using 8 internal eneloop cells, I measured battery voltage versus current (as shown on the KX3 display) during RX and different TX pwr levels, created an Excel scatter chart and fitted a linear trend line. The result: 1.15 Ohms, R^2 = 0.95.

A single eneloop cell has around 0.035 Ohms of internal resistance (measured with a 4-connector battery DC resistance meter forcing current pulses thru the cell under test).

My conclusion: 25% of the 1.15 Ohms are due to the 8 cells, 75% originate in the battery holder and additional wiring.

Markus HB9BRJ

KB9WMJ

Re: My KX3 Battery Approach

Use a better AA battery (3.7V 4.9AH Li-ion):
http://www.ebay.com/itm/181411959514

and battery holder:
http://www.utmfg.com/category/BAT-AA.html

Use 4 of them for 14.8V.

Keith
KB9WMJ

----- Original Message -----
From: "hb9brj" <[hidden email]>
To: <[hidden email]>
Sent: Saturday, July 12, 2014 12:30 PM
Subject: Re: [Elecraft] My KX3 Battery Approach

Using 8 internal eneloop cells, I measured battery voltage versus current
(as
shown on the KX3 display) during RX and different TX pwr levels, created an
Excel scatter chart and fitted a linear trend line. The result: 1.15 Ohms,
R^2 = 0.95.

A single eneloop cell has around 0.035 Ohms of internal resistance (measured
with a 4-connector battery DC resistance meter forcing current pulses thru
the cell under test).

My conclusion: 25% of the 1.15 Ohms are due to the 8 cells, 75% originate in
the battery holder and additional wiring.

Markus HB9BRJ

______________________________________________________________
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Chip Stratton

Re: My KX3 Battery Approach

The 3.7V rating is its voltage at about 50% state of charge. That type of
Li-ion cell has a fully charged voltage of 4.2V. Four of them would be too
much for a KX3.

Chip
Ae5ka

On Sunday, July 13, 2014, <[hidden email]> wrote:

> Use a better AA battery (3.7V 4.9AH Li-ion):
> http://www.ebay.com/itm/181411959514
>
> and battery holder:
> http://www.utmfg.com/category/BAT-AA.html
>
> Use 4 of them for 14.8V.
>
> Keith
> KB9WMJ
>
>
> ----- Original Message -----
> From: "hb9brj" <[hidden email] <javascript:;>>
> To: <[hidden email] <javascript:;>>
> Sent: Saturday, July 12, 2014 12:30 PM
> Subject: Re: [Elecraft] My KX3 Battery Approach
>
>
> Using 8 internal eneloop cells, I measured battery voltage versus current
> (as
> shown on the KX3 display) during RX and different TX pwr levels, created an
> Excel scatter chart and fitted a linear trend line. The result: 1.15 Ohms,
> R^2 = 0.95.
>
> A single eneloop cell has around 0.035 Ohms of internal resistance
> (measured
> with a 4-connector battery DC resistance meter forcing current pulses thru
> the cell under test).
>
> My conclusion: 25% of the 1.15 Ohms are due to the 8 cells, 75% originate
> in
> the battery holder and additional wiring.
>
> Markus HB9BRJ
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email] <javascript:;>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email] <javascript:;>
>

KB9WMJ

Re: My KX3 Battery Approach

The 4.2V is the maximum open circuit voltage. If you are that worried about
it only use 3 Li-ion batteries.

Adding a couple of 5A diodes in series is a viable option as well, plus it
adds the reverse voltage protection.

Keith
KB9WMJ

----- Original Message -----
From: "Chip Stratton" <[hidden email]>
Cc: <[hidden email]>
Sent: Sunday, July 13, 2014 6:10 PM
Subject: Re: [Elecraft] My KX3 Battery Approach

The 3.7V rating is its voltage at about 50% state of charge. That type of
Li-ion cell has a fully charged voltage of 4.2V. Four of them would be too
much for a KX3.

Chip
Ae5ka

On Sunday, July 13, 2014, <[hidden email]> wrote:

> Use a better AA battery (3.7V 4.9AH Li-ion):
> http://www.ebay.com/itm/181411959514
>
> and battery holder:
> http://www.utmfg.com/category/BAT-AA.html
>
> Use 4 of them for 14.8V.
>
> Keith
> KB9WMJ
>
>
> ----- Original Message -----
> From: "hb9brj" <[hidden email] <javascript:;>>
> To: <[hidden email] <javascript:;>>
> Sent: Saturday, July 12, 2014 12:30 PM
> Subject: Re: [Elecraft] My KX3 Battery Approach
>
>
> Using 8 internal eneloop cells, I measured battery voltage versus current
> (as
> shown on the KX3 display) during RX and different TX pwr levels, created
> an
> Excel scatter chart and fitted a linear trend line. The result: 1.15 Ohms,
> R^2 = 0.95.
>
> A single eneloop cell has around 0.035 Ohms of internal resistance
> (measured
> with a 4-connector battery DC resistance meter forcing current pulses thru
> the cell under test).
>
> My conclusion: 25% of the 1.15 Ohms are due to the 8 cells, 75% originate
> in
> the battery holder and additional wiring.
>
> Markus HB9BRJ
>
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John Payne

Re: My KX3 Battery Approach

In reply to this post by KB9WMJ

Unfortunately, those are NOT AA size cells. 18650 cells are much larger.

See <http://happypics.zapto.org/displayimage.php?pid=3026>

73 de W4CWZ

On 7/13/2014 5:58 PM, [hidden email] wrote:
> Use a better AA battery (3.7V 4.9AH Li-ion):
> http://www.ebay.com/itm/181411959514
>
>

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KB9WMJ

Re: My KX3 Battery Approach

Well, I know there is an AA size Li-ion battery, as I have them in my You
Kits FG-01 Antenna Analyzer. It lists the 18650, but I see that's a 19 x
67mm battery.

14500 is 14 x 50mm, so it is the AA sized one.

I know I have used the 18650's as well, as they have lots of current

----- Original Message -----
From: "John Payne" <[hidden email]>
To: <[hidden email]>
Sent: Monday, July 14, 2014 10:03 AM
Subject: Re: [Elecraft] My KX3 Battery Approach

Unfortunately, those are NOT AA size cells. 18650 cells are much larger.

See <http://happypics.zapto.org/displayimage.php?pid=3026>

73 de W4CWZ

On 7/13/2014 5:58 PM, [hidden email] wrote:
> Use a better AA battery (3.7V 4.9AH Li-ion):
> http://www.ebay.com/itm/181411959514
>
>

______________________________________________________________
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