[Elecraft] KBT2 problem

[Don Wilhelm]

Bob,

You need a power supply that develops at least 14.1 volts and up to 14.3 
volts to properly charge the battery through the K2 coaxial power jack.  
It sounds like you were using a 13.8 volt supply.

73,
Don W3FPR

Bob G3YIQ wrote:
> I've just installed the KBT2 option in K2 Nr. 5336. Everything checked out OK
> and I charged the battery for 1 6 hours from a bench power supply. The power
> supply showed some 200 mA  or so being drawn initially but after overnight
> charging this had fallen to a few tens of mA. When I switched the rig on the
> battery only measured 11.5V on the K2's voltmeter. The rig worked on receive
> but I just got a slight hum, no indication of any output and a low battery
> warning when I put the rig into TUNE. I would be grateful for any
> suggestions. 73 Bob G3YiQ
>   
>