[Elecraft] K3 battery power

[Larry 'Rebar' Rebarchik - N6CCH]

There is a mod for the Astron to set it up to float charge the battery
with a little cut to the PCB trace and a 10K resistor.
I have my shack setup with four 55Ah SLAs in parallel to the Astron.  We
ran my K3 on FD with a single 55Ah SLA and made around 80 or possibly 100+
QSOs at 100W until I realized the Solar charged 55Ah battery was connected,
but the PS was not on.

See the following URL for the Astron MOD details;

http://www.arrl.org/attachments/view/User/50572
or the source at;
https://ntc.cap.af.mil/RS_Battmod.cfm

rebar

On Thu, 15 Jul 2010 21:32:08 -0400, "Steve Ellington"
<n4lq at carolina.rr.com> wrote:
> Is anyone using full time battery power and trickle charging?
> Considering the high price of power supplies and the security of a full
> time 
> backup system, it would seem to make sense. The K3 draws so little
current 
> on receive that it would make sense to run it this way. I would be a bit

> concerned about gas from the battery however.
> Currently I use an Astron 35m and I love it but I just bet that it
> consumes 
> more power than the K3! Perhaps the battery/charger concept would be
more 
> efficient?
> Steve
> N4LQ


-- 
73 de N6CCH aka Rebar