[Elecraft] Battery power problems.

[Don Wilhelm]

Tom,

the #12 cable should be just fine for the K2/100, BUT the battery may be
suspect - yes that battery size should be just fine  but if you are running
at higher power, that battery should allow you operation for about 2 hours
if it is in top condition.  The condition of the battery may have a lot to
do with the situation - many batteries develop a high internal resistance as
they age.  Connect that K2 to a good deep cycle (or well charged automotive)
battery as a test and you will likely find better results.

Tap the display button and look at the voltage on the K2 display while
transmitting with that 52 Ah battery and you may be surprised how low the
voltage will go.  The K2 receiver will operate down to about 9 volts, but
transmit will have its limits.  Normally you should not let the battery
voltage drop below 11 volts.

Another thing to check is the APP connectors - if they were crimped, did you
use a good crimper?  The non-rachetted crimpers are usually just not
adequate to assure a good connection - try soldering the connectors to get a
good low resistance, high current worthy connection (fill the connector with
solder but don't get any on the outside).

73,
Don W3FPR


> -----Original Message-----
  What cable size should I use?  Maybe 52 Ah. is too
> little for the K2/100?  Tom
>
>