[Elecraft] Re: Charger for K2 internal battery?

Sun Jun 30 12:50:00 2002

Hello Jeff,

> Where can I find a high quality charger for my K2's internal battery?  I am
> looking for one that will provide exactly 14.0V, as required by the
> battery, and that will maximize the battery's life by not overcharging,
> etc.
> 
> I would be willing to venture into homebrewing a charger, if someone could
> point me to a DETAILED construction article, as I am not an experienced
> homebrewer!

Please read the following mail from Steve, KD1JV, posted on QRP-L. I think
it is the right one for you.

-- 
72/73 de Ingo, DK3RED   Don't forget: the fun is the power!

   [email protected]   http://www.t-online.de/~dk3red
       DL-QRP-AG #824   http://www.dl-qrp-ag.de

-------- Original Message --------
Betreff: Variable output, variable current limit regulator circuit
Datum: Thu, 28 Mar 2002 23:46:41 -0500
Von: Steven Weber <[email protected]>
An: "Low Power Amateur Radio Discussion" <[email protected]>

I recently built a new power supply (like I really need an other one..)
and
thought you guys might be interested in the circuit, so I just put it up
on
my web page. A lot of you guys hook up a 10 amp supply and see what smokes
when you power up a new rig or circuit. Well, if you build this gizmo, you
can slowly crank the voltage up and set a maximum current limit, just in
case. Kinda handy if you like to use a Gel-Cell to try out your new
stuff<g> Or, you can use it to charge your gel-cells. In any event, it's a
fairly simple circuit and uses all common parts. Here's the direct link,
which will hopefully work. If not, go to the home page (URL in sig line)
and link from there. http://www.qsl.net/kd1jv/voclps.HTM

Oh, with the values shown in the circuit, output can be adjusted from 0 to
14V and current limit set from 0 to 2 amps. 

72,
Steve, KD1JV
"Melt Solder"
White Mountains of New Hampshire
http://www.qsl.net/kd1jv/