Tom,

You use the same plug to charge the radio and run it off the supply, which
suggests to me that the supply is sending a voltage to the battery.  Since
the manual doesn't say anything, this might be worth a call to Kenwood.

Steve

On Monday 11/17/03 19:34 Tom Behler wrote:
>     Steve:
>
>I have probably charged and discharged the battery about 10 or 15 times over
>the past year and a Half.  That's only an estimate, though.
>
>I didn't think leaving the battery in the radio would hurt anything if I ran
>it off the power supply, because when the power supply is connected, the
>battery circuit seems to be cut off.
>
>Maybe I'm wrong here, though.
>
>Let's see what the others have to say.
>
>The manual doesn't provide helpful info here, unless I've missed something.
>
>Best 73 from Tom Behler: KB8TYJ
>
>----- Original Message -----
>From: "Steve Dresser" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Sunday, November 16, 2003 9:54 PM
>Subject: Re: lithium ion battery pack for Kenwood THF6A
>
>
> > Hi Tom,
> >
> > When you run the radio off the power supply, do you disconnect the battery
> > pack?  You may have damaged your pack by feeding DC voltage to it from the
> > supply after it was fully charged.  I don't know the answer, but maybe
> > someone else does.  Also, how many times have you charged and discharged
> > the battery?  You may have reached the limit of how many times you can do
>that.
> >
> > Steve
> >
> > On Sunday 11/16/03 13:36 Tom Behler wrote:
> > >Hi, all.
> > >
> > >As many of you know, I own a Kenwood THF6A HT.  I have had the radio now
>for
> > >about a year and a half.
> > >
> > >Recently, I have noticed that the lythium ion battery pack that came with
> > >the radio doesn't seem to hold a charge like it used to.  It seems to me
> > >that it should have lasted longer than a year and a half.
> > >
> > >I either charge the pack with the wall adapter that came with the radio,
>or
> > >a Maha MHC777+2 smart charger.  When I charge it with the MHC77+2 smart
> > >charger, I'm always sure to have it on the Lythium ion setting.
> > >
> > >I should point out that I often use this radio as a base unit, and power
>it
> > >with a regulated 3-amp power supply, but my understanding has always been
> > >that when the power supply is used, the battery is not.
> > >
> > >Any words of wisdom on this issue would be appreciated.  This is the
>first
> > >problem I have ever had with this great little HT.  It is really
> > >inconvenient to, because, as you know, the radio gives you no warning
>when
> > >the battery dies, and it seems to be dying on me quicker than usual now
>if I
> > >am using it.
> > >
> > >Thanks, and best 73 from Tom Behler:  KB8TYJ, Big Rapids, MI