Re: [Elecraft] KX2 Batt

[K9MA]

Yes, I meant separate batteries, NOT the Elecraft battery.  I should have made 
that clear. 

One possibility I've considered to reduce weight is a three cell battery holder 
for AA Li-ion batteries, good for about 800 mAh, as I have used with the KX1.  
With the KX2, they would be good for about 2 hours of CW contest operation at 
5W.

73,
Scott K9MA 
--

Scott Ellington

 --- via iPad

> On Oct 15, 2017, at 3:15 PM, Don Wilhelm  wrote:
> 
> Scott,
> 
> The stock battery pack is sealed as one unit, not 3 individual cells.
> Perhaps you are talking about a possible alternative battery supply and not 
> the one sold by Elecraft.
> 
> 73,
> Don W3FPR
> 
>> On 10/15/2017 3:59 PM, K9MA wrote:
>> One possibility would be to get a 3-cell battery holder, and charge the 
>> cells independently.  A charger which charges several cells simultaneously, 
>> but independently, would assure balance.  Unless you use smaller cells, 
>> however, the will have to be external.

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Re: [Elecraft] KX2 Batt

[Bill Johnson]

To directly answer the question, the balancing circuitry is built into the 
battery for the KX2.  Typical for these types of enclosed batts.  The balancing 
device fits within the depression of the cells.  

73,
Bill
K9YEQ

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm
Sent: Sunday, October 15, 2017 2:05 PM
To: Tony G6GLP <g6...@strus.co.uk>; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX2 Batt

Tony,

The battery must be removed for charging.
The charger and battery are from the same manufacturer and I figure they have 
"done it right" whether that be a balancing circuit in the battery pack or some 
device in the charger.

73,
Don W3FPR

On 10/15/2017 2:36 PM, Tony G6GLP wrote:
> Hi All,
> Decision made  now and I am going for the KX2 but now I have a 
> question about the Batt Li-ion. The charger looks like it charges down 
> the power lead and I am wondering how the balancing is done. Does the 
> pack have its own balancing circuit or what.
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Re: [Elecraft] KX2 Batt

[Don Wilhelm]

Scott,

The stock battery pack is sealed as one unit, not 3 individual cells.
Perhaps you are talking about a possible alternative battery supply and 
not the one sold by Elecraft.


73,
Don W3FPR

On 10/15/2017 3:59 PM, K9MA wrote:
One possibility would be to get a 3-cell battery holder, and charge the 
cells independently.  A charger which charges several cells 
simultaneously, but independently, would assure balance.  Unless you use 
smaller cells, however, the will have to be external.

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Re: [Elecraft] KX2 Batt

[Don Wilhelm]

Tony,

Lithium Ion is a different chemistry than li-po.
I would choose to be safe rather than sorry and buy both the battery and 
charger.
If you are going to be operating portable over a long weekend, consider 
a 2nd battery.


Yes, it can be powered from an external power source through the 2.1mm 
coaxial jack.  For best results, the power supply should have a voltage 
of 13.8 volts or more - up to 15 volts is OK.

BTW - the internal battery can plug into that jack as well.

73,
Don W3FPR

On 10/15/2017 3:17 PM, Tony G6GLP wrote:

Hi Don,
I am sure they have done it correctly but I have a number of different 
charges for li-po and other type batts so was just thinking of either 
not getting the charger or just providing another batt as it only 
seems to connect via 2wire connection for powering the rig.


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Re: [Elecraft] KX2 Batt

[K9MA]

One possibility would be to get a 3-cell battery holder, and charge the 
cells independently.  A charger which charges several cells 
simultaneously, but independently, would assure balance.  Unless you use 
smaller cells, however, the will have to be external.


73,
Scott K9MA
On 10/15/2017 14:17, Tony G6GLP wrote:

Hi Don,
I am sure they have done it correctly but I have a number of different 
charges for li-po and other type batts so was just thinking of either 
not getting the charger or just providing another batt as it only 
seems to connect via 2wire connection for powering the rig.


73 de g6glp


On 15/10/2017 20:04, Don Wilhelm wrote:

Tony,

The battery must be removed for charging.
The charger and battery are from the same manufacturer and I figure 
they have "done it right" whether that be a balancing circuit in the 
battery pack or some device in the charger.


73,
Don W3FPR

On 10/15/2017 2:36 PM, Tony G6GLP wrote:

Hi All,
Decision made  now and I am going for the KX2 but now I have a 
question about the Batt Li-ion. The charger looks like it charges 
down the power lead and I am wondering how the balancing is done. 
Does the pack have its own balancing circuit or what.




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--
Scott  K9MA

k...@sdellington.us

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Re: [Elecraft] KX2 Batt

[Tony G6GLP]

Hi Don,
I am sure they have done it correctly but I have a number of different 
charges for li-po and other type batts so was just thinking of either 
not getting the charger or just providing another batt as it only seems 
to connect via 2wire connection for powering the rig.


73 de g6glp


On 15/10/2017 20:04, Don Wilhelm wrote:

Tony,

The battery must be removed for charging.
The charger and battery are from the same manufacturer and I figure 
they have "done it right" whether that be a balancing circuit in the 
battery pack or some device in the charger.


73,
Don W3FPR

On 10/15/2017 2:36 PM, Tony G6GLP wrote:

Hi All,
Decision made  now and I am going for the KX2 but now I have a 
question about the Batt Li-ion. The charger looks like it charges 
down the power lead and I am wondering how the balancing is done. 
Does the pack have its own balancing circuit or what.




---
This email has been checked for viruses by AVG.
http://www.avg.com

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Re: [Elecraft] KX2 Batt

[Don Wilhelm]

Tony,

The battery must be removed for charging.
The charger and battery are from the same manufacturer and I figure they 
have "done it right" whether that be a balancing circuit in the battery 
pack or some device in the charger.


73,
Don W3FPR

On 10/15/2017 2:36 PM, Tony G6GLP wrote:

Hi All,
Decision made  now and I am going for the KX2 but now I have a question 
about the Batt Li-ion. The charger looks like it charges down the power 
lead and I am wondering how the balancing is done. Does the pack have 
its own balancing circuit or what.

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