Re: [Elecraft] KX3 Internal Batteries

[Doug Plunkett]

Thanks! I really do appreciate the advice!

Doug
KE0GOM 

Sent from my iPad

> On Jul 27, 2022, at 7:14 AM, Rich WC3T  wrote:
> 
> I took them out just as a prophylactic measure.  I *think* I know that Ni-Cd 
> cells don’t burst/leak over time but I would rather not perform that 
> experiment with a KX3.  
> 
> My Bioenno battery is a small price (in $ and peace of mind) to ensure that I 
> don’t destroy my radio.   :)
> 
> 72,
> Rich Hurd / WC3T / DMR: 3142737  
> Grid: FN20is
> Bureaucracy is always in search of self-preservation.  — AA7BQ
> 
>> On Jul 26, 2022, at 22:18, Gwen Patton  wrote:
>> 
>> I stopped keeping batteries (NiMH) in the internal tray when the rig got
>> stuck in an error state while trying to update the firmware. The fix for
>> the issue was to remove all power to the radio for a short time, maybe half
>> a minute, then restore power and update the firmware again. Trouble is, if
>> you have batteries in the internal tray, it can't drop all power unless you
>> open the radio and remove the batteries. After I did that, I simply did not
>> return the batteries to the radio. They are now happily in use powering a
>> Roland MIDI Wind Controller. If I need to power the KX3 in the field, or
>> during a power outage, I will use an external battery pack.
>> 
>> If it disables the RTC, I hadn't noticed the lack. So at least for me it
>> wasn't an issue.
>> 
>> -=-=-=-=-=-=-=-=-
>> 73,
>> Gwen, NG3P
>> 
>> 
>>> On Tue, Jul 26, 2022 at 8:15 PM Walter Underwood 
>>> wrote:
>>> 
>>> I have Eneloop Pro batteries in mine. I replaced them (originally called
>>> Eneloop XX) after seven years. A bit after that, one had a small leak. So
>>> mine are now on a five year replacement schedule.
>>> 
>>> wunder
>>> K6WRU
>>> Walter Underwood
>>> https://observer.wunderwood.org/  (my blog)
>>> 
 On Jul 26, 2022, at 5:10 PM, Jim Brown 
>>> wrote:
 
> On 7/26/2022 4:56 PM, Doug Plunkett wrote:
>> to avoid the rare instance of a battery leaking onto the circuitry.
> 
> Several years ago, I switched away from lead-acid batteries in most of
>>> equipment that uses AA and AAA cells in favor of NiMH rechargeables, after
>>> reading that they are far less likely to leak. So far, no leaks.
 
 From the beginning, at least five years ago, the batteries in my KX3
>>> have been high-capacity NiMH that I bought at Pacificon.
 
 73, Jim K9YC
 
 
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Re: [Elecraft] KX3 Internal Batteries

[Rich WC3T]

I took them out just as a prophylactic measure.  I *think* I know that Ni-Cd 
cells don’t burst/leak over time but I would rather not perform that experiment 
with a KX3.  

My Bioenno battery is a small price (in $ and peace of mind) to ensure that I 
don’t destroy my radio.   :)

72,
Rich Hurd / WC3T / DMR: 3142737  
Grid: FN20is
Bureaucracy is always in search of self-preservation.  — AA7BQ

> On Jul 26, 2022, at 22:18, Gwen Patton  wrote:
> 
> I stopped keeping batteries (NiMH) in the internal tray when the rig got
> stuck in an error state while trying to update the firmware. The fix for
> the issue was to remove all power to the radio for a short time, maybe half
> a minute, then restore power and update the firmware again. Trouble is, if
> you have batteries in the internal tray, it can't drop all power unless you
> open the radio and remove the batteries. After I did that, I simply did not
> return the batteries to the radio. They are now happily in use powering a
> Roland MIDI Wind Controller. If I need to power the KX3 in the field, or
> during a power outage, I will use an external battery pack.
> 
> If it disables the RTC, I hadn't noticed the lack. So at least for me it
> wasn't an issue.
> 
> -=-=-=-=-=-=-=-=-
> 73,
> Gwen, NG3P
> 
> 
>> On Tue, Jul 26, 2022 at 8:15 PM Walter Underwood 
>> wrote:
>> 
>> I have Eneloop Pro batteries in mine. I replaced them (originally called
>> Eneloop XX) after seven years. A bit after that, one had a small leak. So
>> mine are now on a five year replacement schedule.
>> 
>> wunder
>> K6WRU
>> Walter Underwood
>> https://observer.wunderwood.org/  (my blog)
>> 
>>> On Jul 26, 2022, at 5:10 PM, Jim Brown 
>> wrote:
>>> 
>>> On 7/26/2022 4:56 PM, Doug Plunkett wrote:
 to avoid the rare instance of a battery leaking onto the circuitry.
>>> 
>>> Several years ago, I switched away from lead-acid batteries in most of
>> equipment that uses AA and AAA cells in favor of NiMH rechargeables, after
>> reading that they are far less likely to leak. So far, no leaks.
>>> 
>>> From the beginning, at least five years ago, the batteries in my KX3
>> have been high-capacity NiMH that I bought at Pacificon.
>>> 
>>> 73, Jim K9YC
>>> 
>>> 
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>> 
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Re: [Elecraft] KX3 Internal Batteries

[Gwen Patton]

I stopped keeping batteries (NiMH) in the internal tray when the rig got
stuck in an error state while trying to update the firmware. The fix for
the issue was to remove all power to the radio for a short time, maybe half
a minute, then restore power and update the firmware again. Trouble is, if
you have batteries in the internal tray, it can't drop all power unless you
open the radio and remove the batteries. After I did that, I simply did not
return the batteries to the radio. They are now happily in use powering a
Roland MIDI Wind Controller. If I need to power the KX3 in the field, or
during a power outage, I will use an external battery pack.

If it disables the RTC, I hadn't noticed the lack. So at least for me it
wasn't an issue.

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


On Tue, Jul 26, 2022 at 8:15 PM Walter Underwood 
wrote:

> I have Eneloop Pro batteries in mine. I replaced them (originally called
> Eneloop XX) after seven years. A bit after that, one had a small leak. So
> mine are now on a five year replacement schedule.
>
> wunder
> K6WRU
> Walter Underwood
> https://observer.wunderwood.org/  (my blog)
>
> > On Jul 26, 2022, at 5:10 PM, Jim Brown 
> wrote:
> >
> > On 7/26/2022 4:56 PM, Doug Plunkett wrote:
> >>  to avoid the rare instance of a battery leaking onto the circuitry.
> >
> > Several years ago, I switched away from lead-acid batteries in most of
> equipment that uses AA and AAA cells in favor of NiMH rechargeables, after
> reading that they are far less likely to leak. So far, no leaks.
> >
> > From the beginning, at least five years ago, the batteries in my KX3
> have been high-capacity NiMH that I bought at Pacificon.
> >
> > 73, Jim K9YC
> >
> >
> > __
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Re: [Elecraft] KX3 Internal Batteries

[Walter Underwood]

I have Eneloop Pro batteries in mine. I replaced them (originally called 
Eneloop XX) after seven years. A bit after that, one had a small leak. So mine 
are now on a five year replacement schedule.

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

> On Jul 26, 2022, at 5:10 PM, Jim Brown  wrote:
> 
> On 7/26/2022 4:56 PM, Doug Plunkett wrote:
>>  to avoid the rare instance of a battery leaking onto the circuitry.
> 
> Several years ago, I switched away from lead-acid batteries in most of 
> equipment that uses AA and AAA cells in favor of NiMH rechargeables, after 
> reading that they are far less likely to leak. So far, no leaks.
> 
> From the beginning, at least five years ago, the batteries in my KX3 have 
> been high-capacity NiMH that I bought at Pacificon.
> 
> 73, Jim K9YC
> 
> 
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Re: [Elecraft] KX3 Internal Batteries

[Jim Brown]

On 7/26/2022 4:56 PM, Doug Plunkett wrote:

  to avoid the rare instance of a battery leaking onto the circuitry.


Several years ago, I switched away from lead-acid batteries in most of 
equipment that uses AA and AAA cells in favor of NiMH rechargeables, 
after reading that they are far less likely to leak. So far, no leaks.


From the beginning, at least five years ago, the batteries in my KX3 
have been high-capacity NiMH that I bought at Pacificon.


73, Jim K9YC


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Re: [Elecraft] KX3 Internal Batteries

[Fred Jensen]

I follow the dictum, "Never put anything with 'Li' in its name inside 
the radio."  I've always charged all of them outside, even though 
LiFePO4 are pretty stable.  Had an LiPoly RC battert burst into flames 
once while on the deck in the Spartan Sprint with the KX1.  It was on a 
pigtail, I flung it down onto the gravel driveway, wife said as it 
snapped, crackled, and popped, "Should we get the hose?".  I replied, 
"Ummm ...no."


73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 12/17/2018 7:08 PM, Don Wilhelm wrote:
I would not recommend any method of charging Li-Ion batteries in the 
KX2 or any other radio.  Remember the reports of "flaming" cell phones!


73,
Don W3FPR



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Re: [Elecraft] KX3 Internal Batteries

[Don Wilhelm]

Scott,

The KX2 will not produce its full 12 watt output with the internal 
battery pack - expect a maximum of 10 watts, but if battery life is a 
consideration, use 5 watts output.


You can always use an external power supply or battery pack of up to 15 
volts to provide full 12 watts output.


I would not recommend any method of charging Li-Ion batteries in the KX2 
or any other radio.  Remember the reports of "flaming" cell phones!


73,
Don W3FPR

On 12/17/2018 9:41 PM, K9MA wrote:
I don't own a KX3, but it appears the internal batteries are a 
limitation. By contrast, the KX2, which I do own, uses an 11 V internal 
Li-Ion (Li-FePO, I believe) battery, and is designed to provide full 
output at that voltage. (The KX3 requires at least 12 V.) One 
possibility for the KX3 would be to do as I did for my old KX1, which 
was to replace the internal batteries with four AA Li-Ion cells, plus a 
low dropout linear regulator to limit the voltage to 15 V. The batteries 
would have to be removed to be recharged, and a second set would be 
required for longer operation.

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Re: [Elecraft] KX3 Internal Batteries

[Chip Stratton]

I found that the standard Eneloops were better for my KX3 than the Eneloop
Pro. While the Eneloop Pro has a higher total capacity at lower rates of
discharge than the standard Eneloop, my samples had a higher internal
resistance than the standard Eneloop. That translated into a greater
voltage sag when operating at 10 watts with the Eneloop Pro cells compared
to the standard Eneloops, and so a shorter period of time before 5 watts
was maximum transmission power limit, and end of useful charge even at 5
watts came more quickly with the Pro cells compared to the standard cells.

I'm sorry I don't have more hard numbers to present, and perhaps I just had
a bad batch of Eneloop Pro cells, but it does make sense to me that in
order to get 20% more capacity at low discharge rates, internal resistance,
which is more critical at high discharge rates, might have to be sacrificed.

Chip
AE5KA

On Wed, May 9, 2018 at 12:29 PM,  wrote:

> My Eneloop (non-pro) 1900mAh are still going strong almost three years
> later.  The pros were not available yet when I purchased the KX3.
>
> 72
>
>
> Howard Kraus, K2UD
>  Jeff Davis  wrote:
> > It's time to initiate the three-month old KX3 into the great outside.
> >
> > Recommendations for internal batteries appreciated.
> >
> > Thanks.
> >
> > 73, Jeff KE9V
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Re: [Elecraft] KX3 Internal Batteries

[k2ud]

My Eneloop (non-pro) 1900mAh are still going strong almost three years later.  
The pros were not available yet when I purchased the KX3.

72


Howard Kraus, K2UD
 Jeff Davis  wrote: 
> It's time to initiate the three-month old KX3 into the great outside.
> 
> Recommendations for internal batteries appreciated.
> 
> Thanks.
> 
> 73, Jeff KE9V
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Re: [Elecraft] KX3 Internal Batteries

[Raymond Sills]

Amen.   Second the motion.  Get the Eneloops.




73 de Ray
K2ULR



-Original Message-
From: Grant Youngman <ghyoung...@gmail.com>
To: Jeff Davis <stuck...@gmail.com>
Cc: elecraft <elecraft@mailman.qth.net>
Sent: Wed, May 9, 2018 10:32 am
Subject: Re: [Elecraft] KX3 Internal Batteries

Panasonic Eneloop Pro …Grant NQ5TK3 #2091, KX3 #8342> On May 9, 2018, at 10:18 
AM, Jeff Davis <stuck...@gmail.com> wrote:> > It's time to initiate the 
three-month old KX3 into the great outside.> > Recommendations for internal 
batteries appreciated.> 
__Elecraft mailing 
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Re: [Elecraft] KX3 Internal Batteries

[Lynn W. Taylor, WB6UUT]

I've had good results in a number of applications with any of the 
"pre-charged" NiMH.


"pre-charged" is the key.  That's the normal marketing-speak for 
low-self-discharge.


Eneloops are a very safe bet.

73 -- Lynn

On 5/9/2018 8:01 AM, Walter Underwood wrote:

No, the Amazon Basics batteries are not the same as the Eneloop Pro. For one 
thing, they are 2400 mAh instead of 2550 mAh. The best bet is that Amazon 
Basics batteries are the previous version of Eneloops, made in the old factory. 
But that is a guess.

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Re: [Elecraft] KX3 Internal Batteries

[Walter Underwood]

How do they test for actual capacity? The first Q on Amazon says these 2800 
mAh batteries actually tested as 2000 mAh. That is believable, since they are 
about half the cost of the Amazon Basics batteries.

Amazon Q: https://www.amazon.com/ask/questions/Tx1YAAW3L67OV3R/

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

> On May 9, 2018, at 7:39 AM, rich hurd WC3T  wrote:
> 
> I am a happy Eneloop customer; however, I'm also evaluating - and having a
> productive time with - the Bonai brand from Amazon; specifically these.
> http://a.co/6KSjWJP
> 
> Specs are advertised as 2800 mAH, low self discharge.
> 
> On Wed, May 9, 2018 at 10:29 AM Grant Youngman  wrote:
> 
>> Panasonic Eneloop Pro …
>> 
>> 
>> Grant NQ5T
>> K3 #2091, KX3 #8342
>> 
>>> On May 9, 2018, at 10:18 AM, Jeff Davis  wrote:
>>> 
>>> It's time to initiate the three-month old KX3 into the great outside.
>>> 
>>> Recommendations for internal batteries appreciated.
>>> 
>> 
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> 
> 
> -- 
> 72,
> Rich Hurd / WC3T / DMR: 3142737
> PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer
> for Scouting
> Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
> *FN20is*
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Re: [Elecraft] KX3 Internal Batteries

[rich hurd WC3T]

I am a happy Eneloop customer; however, I'm also evaluating - and having a
productive time with - the Bonai brand from Amazon; specifically these.
http://a.co/6KSjWJP

Specs are advertised as 2800 mAH, low self discharge.

On Wed, May 9, 2018 at 10:29 AM Grant Youngman  wrote:

> Panasonic Eneloop Pro …
>
>
> Grant NQ5T
> K3 #2091, KX3 #8342
>
> > On May 9, 2018, at 10:18 AM, Jeff Davis  wrote:
> >
> > It's time to initiate the three-month old KX3 into the great outside.
> >
> > Recommendations for internal batteries appreciated.
> >
>
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Re: [Elecraft] KX3 Internal Batteries

[Walter Underwood]

No, the Amazon Basics batteries are not the same as the Eneloop Pro. For one 
thing, they are 2400 mAh instead of 2550 mAh. The best bet is that Amazon 
Basics batteries are the previous version of Eneloops, made in the old factory. 
But that is a guess.

Personally, I’m not interested in saving $13 on batteries for a thousand dollar 
radio. Spend the full $32 for Eneloop Pro.

Use these:

https://smile.amazon.com/Panasonic-BK-3HCCA8BA-Pre-Charged-Rechargeable-Batteries/dp/B00MXCIK32/

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

> On May 9, 2018, at 7:49 AM, Sean Donovan  
> wrote:
> 
> https://smile.amazon.com/gp/product/B00HZV9WTM/ - Same as above, but
> cheaper.
> 
> On Wed, May 9, 2018 at 10:29 AM, Grant Youngman 
> wrote:
> 
>> Panasonic Eneloop Pro …
>> 
>> 
>> Grant NQ5T
>> K3 #2091, KX3 #8342
>> 
>>> On May 9, 2018, at 10:18 AM, Jeff Davis  wrote:
>>> 
>>> It's time to initiate the three-month old KX3 into the great outside.
>>> 
>>> Recommendations for internal batteries appreciated.
>>> 
>> 
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Re: [Elecraft] KX3 Internal Batteries

[Jeff Davis]

Thanks for all the suggestions. Batteries ordered and on the way.

Much appreciated!

73, Jeff KE9V

On Wed, May 9, 2018 at 10:51 AM Walter Underwood 
wrote:

> Yes, Eneloop Pro.
>
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
> > On May 9, 2018, at 7:29 AM, Grant Youngman  wrote:
> >
> > Panasonic Eneloop Pro …
> >
> >
> > Grant NQ5T
> > K3 #2091, KX3 #8342
> >
> >> On May 9, 2018, at 10:18 AM, Jeff Davis  wrote:
> >>
> >> It's time to initiate the three-month old KX3 into the great outside.
> >>
> >> Recommendations for internal batteries appreciated.
> >>
> >
> > __
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Re: [Elecraft] KX3 Internal Batteries

[Sean Donovan]

https://smile.amazon.com/gp/product/B00HZV9WTM/ - Same as above, but
cheaper.

On Wed, May 9, 2018 at 10:29 AM, Grant Youngman 
wrote:

> Panasonic Eneloop Pro …
>
>
> Grant NQ5T
> K3 #2091, KX3 #8342
>
> > On May 9, 2018, at 10:18 AM, Jeff Davis  wrote:
> >
> > It's time to initiate the three-month old KX3 into the great outside.
> >
> > Recommendations for internal batteries appreciated.
> >
>
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Re: [Elecraft] KX3 Internal Batteries

[Walter Underwood]

Yes, Eneloop Pro.

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

> On May 9, 2018, at 7:29 AM, Grant Youngman  wrote:
> 
> Panasonic Eneloop Pro …
> 
> 
> Grant NQ5T
> K3 #2091, KX3 #8342
> 
>> On May 9, 2018, at 10:18 AM, Jeff Davis  wrote:
>> 
>> It's time to initiate the three-month old KX3 into the great outside.
>> 
>> Recommendations for internal batteries appreciated.
>> 
> 
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Re: [Elecraft] KX3 Internal Batteries

[Grant Youngman]

Panasonic Eneloop Pro …


Grant NQ5T
K3 #2091, KX3 #8342

> On May 9, 2018, at 10:18 AM, Jeff Davis  wrote:
> 
> It's time to initiate the three-month old KX3 into the great outside.
> 
> Recommendations for internal batteries appreciated.
> 

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Re: [Elecraft] kx3 internal batteries question

[Richard Gagnon]

Hi Greg,
Really appreciate the detailed instructions! Still waiting for my 9000
and new Enloops, but I will follow these recommendations as soon as it
arrives. I didn't even think of the importance of Low Discharge verses
the high Ah rating, but it is clearly an important parameter.
Rich

-Original Message-
From: Greg Troxel [mailto:g...@lexort.com] 
Sent: Sunday, October 20, 2013 8:29 AM
To: Richard Gagnon
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] kx3 internal batteries question

  I then removed all 8 batteries and checked their voltage (no load,
just
  with an old Simpson VOM) and 4 batteries measured 1.2 V and the other
4
  were at 0.0 V. I am not sure why they would be different, nor do I
  understand the BATT ERROR message. 

[Others have explained BATT ERROR.]

It sounds like 4 of the batteries are weak and/or failed relative to the
other 4.  Are they really the same kind and age?

I usually advise against buying batteries that are 1) not
ultra-low-discharge or 2) other than Maha/PowerEx or Sanyo.

First, label the 8 batteries with something that won't rub off.  Also
label your new 8 batteries.  Log the as-found voltages, and all of the
following data.

Eventually you will have weak/bad cells, and it's really hard to know
what's going on if they aren't labeled.  With a set of 8, you will need
to get 8 new ones when you have one failure, but you will likely have a
number of cells that can be used in pairs.  (I got 8 Maha Imedions in
2009, and have been using them nearly daily to power a handheld GPS
receiver.  6 are working fine, and 2 have failed, which seems ok given
their usage.)



When your C9000 arrives (that spares me from advising that you get one
:-), do a REFRESH-ANALYZE cycle on each battery.  I use 1000 mA charge,
200 mA discharge, as a standard load over multiple devices.  After
you've
done all 8, do them again.   If some are weak (not 100 mA less, but like
700 mAh vs 2400 mAh), they are bad and should be recycled.

Also do refresh-analyze on the new batteries, 2 cycles.  Probably they
will stabilize in capacity on the 2nd cycle, with values not that
different than the first.  Keep this data so you can do it again every
year.

Feel free to send me the data offlist for interpretation.

My extended battery ranting is at
  http://www.lexort.com/blog/12v.html

73 de n1dam
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Re: [Elecraft] kx3 internal batteries question

[Greg Troxel]

  I then removed all 8 batteries and checked their voltage (no load, just
  with an old Simpson VOM) and 4 batteries measured 1.2 V and the other 4
  were at 0.0 V. I am not sure why they would be different, nor do I
  understand the BATT ERROR message. 

[Others have explained BATT ERROR.]

It sounds like 4 of the batteries are weak and/or failed relative to the
other 4.  Are they really the same kind and age?

I usually advise against buying batteries that are 1) not
ultra-low-discharge or 2) other than Maha/PowerEx or Sanyo.

First, label the 8 batteries with something that won't rub off.  Also
label your new 8 batteries.  Log the as-found voltages, and all of the
following data.

Eventually you will have weak/bad cells, and it's really hard to know
what's going on if they aren't labeled.  With a set of 8, you will need
to get 8 new ones when you have one failure, but you will likely have a
number of cells that can be used in pairs.  (I got 8 Maha Imedions in
2009, and have been using them nearly daily to power a handheld GPS
receiver.  6 are working fine, and 2 have failed, which seems ok given
their usage.)



When your C9000 arrives (that spares me from advising that you get one :-),
do a REFRESH-ANALYZE cycle on each battery.  I use 1000 mA charge, 200
mA discharge, as a standard load over multiple devices.  After you've
done all 8, do them again.   If some are weak (not 100 mA less, but like
700 mAh vs 2400 mAh), they are bad and should be recycled.

Also do refresh-analyze on the new batteries, 2 cycles.  Probably they
will stabilize in capacity on the 2nd cycle, with values not that
different than the first.  Keep this data so you can do it again every
year.

Feel free to send me the data offlist for interpretation.

My extended battery ranting is at
  http://www.lexort.com/blog/12v.html

73 de n1dam
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Re: [Elecraft] kx3 internal batteries question

[Rich Heineck]

The KXBC3 checks battery voltage before starting a charge, and if it's 
not within a reasonable range (6.4V to 11.2V) it will indicate an error 
condition.  Battery manufacturers recommend not discharging cells below 
0.9V, and healthy cells will normally hold a residual charge pretty well 
without a load, so the error message was letting you know something was 
wrong.  Sanyo (maker of the Eneloops) has historically been a top tier 
battery manufacturer, so they should work well in the KX3.


73,
Rich  AC7MA


On 10/16/2013 02:01 PM, Richard Gagnon wrote:

I have a question about the batteries in my KX3.

  


I purchased and installed 8 Anasman 2850 NiMH batteries in the KX3 and
have used the radio successfully on these batteries for several months,
including several recharge cycles with the KX3 internal charger. I last
used the KX3 several months ago, so the batteries were understandably
dead when I went to try it out the other day. I plugged it in to an
external wall wart (12VDC 1.5A) and turned the radio on. The reading on
the screen was 12.0V. I then turned on the Battery Charger, but it would
only give me a BATT ERROR on the screen.

  


Thinking the wall wart might be the issue (it only supplied 12V and the
manual says the charger voltage must be at least 13VDC) I plugged the
KX3 into my bench supply at 13.5VDC and got the same BATT ERROR when
turning on the internal charger.

  


I then removed all 8 batteries and checked their voltage (no load, just
with an old Simpson VOM) and 4 batteries measured 1.2 V and the other 4
were at 0.0 V. I am not sure why they would be different, nor do I
understand the BATT ERROR message.

  


I have since ordered 8 AA Eneloops XX low discharge 2500mAh batteries,
and a Maha C9000 charger, but am curious as to how only have the
batteries were dead on what might be going on with the BATT ERROR. Any
thoughts or advise would be welcome.

  


Thanks,

  


Richard Gagnon

KG1Y

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Re: [Elecraft] kx3 internal batteries question

[Mark Petiford]

Richard,The one place that the KX3 Owners Manual seems to be short on is an 
explanation of the various KXBC3 Charger error messages.  They are all in the 
KXBC3 Installation and Operation guide which most owners of factory built KX3's 
never look at.  There needs to be a note to look up battery charge related 
error messages in the KXBC3 manual, or merge all error messages into the KX3 
owners manual.  (Ron, AC7AC:  I am not a Tech Writer, so this is just a 
suggestion).The KXBC3 Installation and Operation guide says that the BAT ERR 
message is due to Battery missing or battery voltage out of range due to a 
fully charged pack or a defective or missing cell...I suspect your cells that 
drifted down to zero volts look like defective or missing cells to the KXBC3. 
 They would certainly cause the voltage to be out of range resulting in the 
KXBC3 issuing that error message.I don't have much experience with regular NiMH 
cells (as opposed to Low Self
 Discharge NiMH cells), but I did try a set of them (Rayovac) a month or so ago 
with poor results.  After a couple of weeks of no usage, I had to recharge 
them.  One had dropped well below 1v, and the others varied some, but were near 
1v.  In my case, the KXBC3 was able to recharge them, but I wondered what would 
happen if I had left them in the KX3 longer until the voltage dropped well 
below 1v per cell.  I think I know now, based on your experience.I am certain 
you will be much happier with the Eneloops.  There are a couple of other good 
brands NiMH cells out there, but you must be certain they are Low Self 
Discharge cells unless you are willing to recharge them often.MarkKE6BB    
From: Richard Gagnon rich...@gagnonconsulting.comSent: ‎Wed, ‎Oct‎ ‎16‎, ‎2013 
at ‎4‎:‎40‎ ‎PMTo: 
 elecraft@mailman.qth.netSubject: [Elecraft] kx3 internal batteries questionI 
have a question about the batteries in my KX3.  I purchased and installed 8 
Anasman 2850 NiMH batteries in the KX3 andhave used the radio successfully on 
these batteries for several months,including several recharge cycles with the 
KX3 internal charger. I lastused the KX3 several months ago, so the batteries 
were
 understandablydead when I went to try it out the other day...
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Re: [Elecraft] kx3 internal batteries question

[Mark Petiford]

All:

Sorry about the previous message.  Looks like all my CR/LF's got stripped out 
and a couple were added as well.  Even the part of the message I responded to 
was stripped.

Mark
KE6BB
From: Mark Petiford rv6am...@yahoo.com
Sent: ‎Wed, ‎Oct‎ ‎16‎, ‎2013 at ‎9‎:‎00‎ ‎PM
To: Richard Gagnon rich...@gagnonconsulting.com;  elecraft@mailman.qth.net
Subject: Re: [Elecraft] kx3 internal batteries question

Richard,The one place that the KX3 Owners Manual seems to be short on is an 
explanation of the various KXBC3 Charger error messages.  They are all in the 
KXBC3 Installation and Operation guide which most owners of factory built KX3's 
never look at.  There needs to be a note to look up battery charge related 
error messages in the KXBC3 manual, or merge all error messages into the KX3 
owners manual.  (Ron, AC7AC:  I am not a Tech Writer, so this is just a 
suggestion).The KXBC3 Installation and Operation guide says that the BAT ERR 
message is due to Battery missing or battery voltage out of range due to a 
fully charged pack or a defective or missing cell...I suspect your cells that 
drifted down to zero volts look like defective or missing cells to the KXBC3. 
 They would certainly cause the voltage to be out of range resulting in the 
KXBC3 issuing that error message.I don't have much experience with regular NiMH 
cells (as opposed to Low Self
 Discharge NiMH cells), but I did try a set of them (Rayovac) a month or so ago 
with poor results.  After a couple of weeks of no usage, I had to recharge 
them.  One had dropped well below 1v, and the others varied some, but were near 
1v.  In my case, the KXBC3 was able to recharge them, but I wondered what would 
happen if I had left them in the KX3 longer until the voltage dropped well 
below 1v per cell.  I think I know now, based on your experience.I am certain 
you will be much happier with the Eneloops.  There are a couple of other good 
brands NiMH cells out there, but you must be certain they are Low Self 
Discharge cells unless you are willing to recharge them often.MarkKE6BB    
From: Richard Gagnon rich...@gagnonconsulting.comSent: ‎Wed, ‎Oct‎ ‎16‎, ‎2013 
at ‎4‎:‎40‎ ‎PMTo: 
 elecraft@mailman.qth.netSubject: [Elecraft] kx3 internal batteries questionI 
have a question about the batteries in my KX3.  I purchased and installed 8 
Anasman 2850 NiMH batteries in the KX3 andhave used the radio successfully on 
these batteries for several months,including several recharge cycles with the 
KX3 internal charger. I lastused the KX3 several months ago, so the batteries 
were
 understandablydead when I went to try it out the other day...
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