[Elecraft] [K2] KBT2 Battery charger/power supply recommendation?

[Dick Dievendorff]

I have a 10-watt K2 with the KBT2 installed.  The KBT2 manual recommends a
14.0V power supply or battery life will be "reduced".  It's easy to put my
K2 on my station's 12V supply (which is really about 13.6V), but I seek a
small switching power supply that I can adjust to 14V to power my K2 in the
field and keep the internal battery topped off.  I have a Gamma Research
HPS-1A which is ideally sized, but I can't adjust the output voltage (and
the filter caps are operating very, very close to their rated voltage).  

 

I thought of a Ramsey Kits LABC1 with a 20V wall wart, but I suspect it
would be electrically too noisy to consider. I could charge the battery with
it, but not while operating any radio in the near vicinity.

 

So I need a 14V DC 2A battery charger that's electrically quiet.  Are there
such things? 

 

73 de Dick, K6KR