Re: [Elecraft] Battery Question.

2007-03-26 Thread Paul - VE1DY

Hi Jimmy,

The K2 with the internal battery and tuner is definitely a top notch
combination!

I use an A&A smartcharger to charge my internal battery.  Mine is
setup like Don describes, with a fuse to a plug on the back of the K2.

You'll really enjoy the versatility the internal battery gives.

73, Paul
--
Paul - ve1dy - Halifax, NS
SKCC #91, K2 - 5678
www3.ns.sympatico.ca/ppike


On 3/26/07, Jimmy Lee <[EMAIL PROTECTED]> wrote:

I have a K2 and would like to install the internal battery.  What is the best 
way to use and maintain this battery?  I  use the K2 mostly at home on AC and 
an occasional visit to a park and etc.
Thanks,
Jimmy

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Re: [Elecraft] Battery Question.

2007-03-26 Thread Don Wilhelm

Jimmy,

You can keep the battery charged with a power supply that has an output 
voltage of 14.1 volts.


OR - you can use one of the Smartchargers to keep the battery charged. 
Unfortunately, those require a direct connection to the battery.  If you 
would like more information on how to do that, take a look at the 
article on my website http://w3fpr.qrpradio.com


73,
Don W3FPR

Jimmy Lee wrote:

I have a K2 and would like to install the internal battery.  What is the best 
way to use and maintain this battery?  I  use the K2 mostly at home on AC and 
an occasional visit to a park and etc.
Thanks,
Jimmy

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Re: [Elecraft] Battery question

2006-01-16 Thread Bob Nielsen


On Jan 16, 2006, at 11:53 AM, <[EMAIL PROTECTED]> <[EMAIL PROTECTED]> wrote:


Hello -
I finished a K2 last Spring. Shortly therafter the shack came down  
while I did a massive home remodel. About two months into the  
remodel it occurred to me that I did not have the K2 plugged and  
thus the onboard battery was not being charged.
I turned on the K2 without external power and I believe the display  
said around 10 volts before it died. The battery had no juice. I've  
plugged in the power supply and have started recharging the  
battery. The radio will stay on now with battery only, but I cannot  
get the battery voltage to go much over 11 volts. Yes I am a  
technical dunce, chuckle - and now that the chuckle is overwith:  
How can I determine if the battery is permanently damaged? Also,  
how long would it normally take a K2 battery to discharge when not  
in use and, conversely, how long should it take to charge back to  
full capacity? Thank you in advance.



I would not expect the battery to be damaged if you had it sitting  
for only two months (I have gone much longer than that without any  
problems).


What is the voltage of your power supply?  In order to charge the  
battery, you should have between 13.8 and 14.2 volts out of the  
supply (13.6 to 14.0 volts as read on the K2 display because of diode  
drop inside the K2).   I had to increase the output of my supplies  
above the factory setting to do this.   If the supply voltage is less  
than this, it will not fully charge the battery.  A fully charged  
battery should read approximately 12.0 volts on the K2 display when  
the charging supply is removed.


73, Bob N7XY


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