[Elecraft] Keeping the battery charged

[Bob Nielsen]

You could use a socket like that which is on the K2 RF board.  If you
have both the KBT2 and KPA100, you should have an extra socket, since
they each provide one.  Just wire a cable from that to your power
supply and plug it into the battery cable when the top panel is removed
from your K2.  Come to think of it, I'll do that myself. 

Alternatively, clip leads should do the job.

73,
Bob, N7XY

On Thu, Jun 19, 2003 at 06:09:27PM -0700, Charles Bland wrote:
> Guys,
> 
> My question was oriented toward the approach to use when the KPA spends most of 
> it's time in the radio and the low power PA/Battery lid spends most of it's 
> time OUT of the radio.
> 
> In this configuration, I don't have a power connector on the lid, except for 
> the internal battery connection that plugs into the main board.
> 
> I was curious if anyone had come up with an approach to deal with this 
> situation.
> 
> Chucky
> 
> Note George,  W5YR's stunning brilliance and Chuck's apt reply (gack!)
> 
> From:           	"George,  W5YR" <w5yr@att.net>
> To:             	"Francis Belliveau" <flb@attbi.com>,
> 	"elecraft List" <elecraft@mailman.qth.net>
> Subject:        	Re: [Elecraft] Keeping the battery charged
> Organization:   	W5YR
> Date sent:      	Thu, 19 Jun 2003 09:49:22 -0500
> 
> > Bingo, Fran! It works for me, too.
> > 
> > I readjusted a small 4-amp, 13.8 volt supply to provide 14.4 volts at the
> > input connector of my K2. The PS runs 24/7 and even though the battery is
> > relatively old  - K2 Serial No. 489 - it remains in good condition and
> > appears to have full capacity.
> > 
> > 73/72, George
> > Amateur Radio W5YR -  the Yellow Rose of Texas
> > Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
> > "In the 57th year and it just keeps getting better!"
> > <mailto:w5yr@att.net>
> > 
> > 
> > 
> > 
> > 
> > 
> > ----- Original Message -----
> > From: "Francis Belliveau" <flb@attbi.com>
> > To: "elecraft List" <elecraft@mailman.qth.net>
> > Sent: Thursday, June 19, 2003 9:09 AM
> > Subject: Re: [Elecraft] Keeping the battery charged
> > 
> > 
> > > The answer to this questin is rather simple, keep it connected to a power
> > > supply.
> > >
> > > The OCv of the battery should be 13.2 volts.
> > >
> > > If it is connected to a supply with an output voltage between 13.5 and
> > 14.1
> > > volts it will remain reasonably well charged.  Normal float charging
> > voltage
> > > is 14.1 volts and the informaiton that I have indicates that the battery
> > > should ber able to survive this voltage being applied indefinately.
> > >
> > > Therefore if you keep the battery connected to a 14.4 volt supply it will
> > be
> > > fully charged and ready whenever you need it.  Anything much lower will
> > keep
> > > it alive, but will not completely restore any lost charge.
> > >
> > > Fran
> >