[Elecraft] Low battery on K2 without battery

[Don Wilhelm]

Scott,

What does the K2 internal voltage (tap DISPLAY) read?  How about during 
transmit too?
If it is substantially lower than the voltage at the power supply, look 
for a problem with the power cord or the connections to the supply or 
even with the supply itself - substitute a charged automotive battery or 
a gel cell for the supply as a test.
The voltage will normally be 0.2 volts lower than the supply because of 
the series protection diode, so more drop than that is significant and 
indicates a bad connection somewhere.

73,
Don W3FPR

Scott McDowell wrote:
> Hello
> For some reason the low battery messages keeps poping up on my K2
> in the receive mode.
> I have the p7 jumper on the internal side, and have tried it on the
> external pins, but I still keep getting the low battery message.
> On my first K2 I  had the battery deal turned off, but don't see anything
> in the manual on how to turn it off on this one.
> It's drawing 240 ma on receive and the internal volt meter doesn't work
> but the power supply voltmeter shows 13 volts.
> Any ideas?
> Scott
> N5SM
>
>