[Elecraft] KBT2 charging question

[John R. Lonigro]

Don et al:
I've never tried this, but I've been wondering if any protection would 
be given the K2 if there were a reverse-biased diode running from the 
+13.8V input to ground.  Put a 5 amp fuse in the positive line between 
the diode  and the power socket and it should immediately blow if the 
diode senses a reverse hookup.  With a correct hookup, the K2 would get 
the full voltage from the power supply.  My guess is the K2 might still 
experience some damage before the fuse blew, but I'm not smart enough to 
know that for sure and I'm definitely NOT going to try it on mine!  I 
haven't noticed any problems with the series diode.

Just some food for discussion, but let's not have a food fight over it (hi).

73's,

John AA0VE

Don Wilhelm wrote:
> Fred,
>
> Not a design glitch IMHO - there is no way that Elecraft can redesign the
> float voltage for an SLA battery!! plus:
> I for one would not eliminate the series protective diode, so unless someone
> comes up with a protective diode with zero voltage drop, we just have to
> deal with those two parameters.
>