If that's it, I won't have that problem probably because I use the batteries 
America charger to charge my batteries. I've always preferred desktop 
chargers where I can charge the battery off the radio.
----- Original Message ----- 
From: "Fred" <glenndriech@...>
To: <TH-F6A@...>
Sent: Thursday, April 24, 2008 7:09 PM
Subject: Re: [TH-F6A] radio won't power on via battery - how I resolved it.

> 'Tis likely the dreaded power socket contact problem.
>
> When you disconnect the charger plug, a little socket
> contact doesn't fully re-make.  If due to crud or
> oxidation, a touch of switch cleaner and a careful
> prod with a cocktail stick can help.
>
> Regards,
>
> Fred.
>
>
>
> --- x509v3 <x509v3@...> wrote:
>
>> If I read about this story in this group, I wouldn't
>> have believed it. But it happened to me
>> and I wanted to share. Has anyone else seen this?
>>
>> I have a 2-year old TH-F6A that sees very light use.
>> It's extremely well cared-for, it
>> spends most of its time plugged into its stock
>> charger waiting for an emergency or the
>> weekly net. The radio hasn't been modified in any
>> way and I'm only using the stock
>> Lithium battery and charger.
>>
>> Yesterday I unplugged it from the charger to use it
>> on the weekly net and ... it didn't
>> power on. If I plugged it back in to the charger, it
>> would power up. Removing and
>> reinstalling the battery didn't help. Switching
>> batteries from my wife's F6A didn't help. My
>> battery on her HT worked fine, so I confirmed it
>> wasn't a battery problem. I tried doing a
>> full reset on my HT and that didn't help either.
>>
>> I left the unit unplugged and uncharged all day.
>> When I came home from work and tested
>> it, the unit would still not power on when powered
>> from battery.
>>
>> Using a DVM I verified that the battery was properly
>> charged. I also tested the resistance
>> across the HT's battery terminals on its back case:
>> 230 KOhms. I compared this value to
>> my wife's (working) HT: her's read 24 kOhms. I
>> double-checked the results.
>>
>> I then installed the battery on my HT and .. it
>> powered up!
>>
>> I then tested the resistance of the same terminals
>> on my HT and they were 24 kOhms.
>>
>> What does this mean? I have no idea.
>>
>> At first I assumed that a fuse may have given out on
>> my HT, but after seeing the difference
>> in resistance values between a working and
>> non-working unit, that's clearly not what
>> happened.
>>
>> I've had this radio fail to powerup one other time
>> in the past 2 years but I seem to recall
>> that simply removing and reinserting the battery
>> fixed it last time.
>>
>> So, if this happens to you, you might want to unplug
>> your HT from everything and briefly
>> test or short out the terminals on the back of the
>> radio to drain it of some sort of residual
>> charge.
>>
>>
>
>
>
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