[Elecraft] KBT2

Sat Apr 19 11:29:00 2003

Don,

My Kenwood PS puts out 14,15V measured with a DVM.
My K2 displays 13.5V.
I believe there was a note about replacing D10 with a diode
that had a lower Vf.
Do you happen to know what that diode was???

Dave KK7SS
K2 #3003

----- Original Message -----
From: "Don Wilhelm" <[email protected]>
To: "Richard Lim" <[email protected]>; "Elecraft"
<[email protected]>
Sent: Saturday, April 19, 2003 7:43 AM
Subject: Re: [Elecraft] KBT2

> Rich,
>
> I believe I have addressed the safety issues of a direct
connection to the
> battery by including a fuse.  Take a look at my website
www.qsl.net/w3fpr to
> see how I have implemented the A&A Engineering charger
connection to the K2.
> You may also be interested in my modification to the charger
itself to limit
> the charging current - there have been concerns expressed a
long time ago
> about the possibility of overcharging the internal battery
when the K2 is
> turned on which fools the charger into thinking that the
battery needs to be
> charged.
>
> 73,
> Don W3FPR
>
> ----- Original Message -----
>
> > Question to all the K2 Experts on the group.  I recently
purchased the
> KBT2
> > option for my K2, but am reluctant to install it.  The
manual states that
> a
> > voltage of 14.0V must be applied during trickle charge,
lest damage is
> done
> > to the SLA. I have an Aston SS30M switching supply which
puts out exactly
> > 13.8v on the K2 internal DVM, it has no options to
increase voltage.  What
> > have other folk on the list done to get around this issue?
I have a
> "Smart
> > Charger" from A&A Engineering, was thinking about putting
a connector in
> one
> > of the tranverter holes to connect the charger to the
battery directly, is
> > this safe? Thanks.
> > Rich
> > KQ9L
>
>
>
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