[Elecraft] battery backup, etc. for QRO K2?

Don Wilhelm w3fpr at earthlink.net
Wed Jul 11 17:12:39 EDT 2007


Chris,

The way I do it with my K2 twins is to use a Smartcharger (directly 
connected to the battery terminals - fused of course) to power the base 
K2.  The base K2 always runs on the internal battery.  The high current 
supply is connected to the KPA100/KAT100 combination in the EC2 enclosure.

If you find that you need to purchase a new supply just ot keep the 
voltage up to where the internal battery will be charged, then the 
Smartcharger may be a better alternative.

If you want to see my implementation of the direct battery connection, 
go to my website http://w3fpr.qrpradio.com.

73,
Don W3FPR

Chris Kantarjiev wrote:
> I've been running a QRP K2 for about 18 months now. It has the
> KBT2, and I've been powering the home station with a 10A linear
> PS that's adjusted to 14.2V, to keep the internal gelcell happy.
> 
> Now I'm going to add a KPA100/KAT100 in an EC2 (K2 twins!) and
> have to upgrade my power setup. My current thinking is to use
> the Alinco DM-330 switching PS for space reasons (my shack
> shares space with my office :-) 


More information about the Elecraft mailing list