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From: Evan Dallas <evand_at_pensionresourcegroup.com>
subject: [Paddlewise] VHF radio chargers
Date: Mon, 11 Apr 2005 20:36:29 -0700
As long as we're on the subject of VHF radios, I bought a Standard
HX350S radio a year ago, which comes with a drop-in trickle charger.  I
like the radio a lot--except for the supplied charger which doesn't
include circuitry to turn off after it reaches a full charge.  According
to the manual, it will recharge a fully discharged battery in 15 hours
-- but warns not to charge it for longer than 16 hours.  Consequently,
the way I've been handling this is to leave the radio on until it
completely discharges (which takes a long time on "receive mode"), then
drop it in the charger for 15 hours.  Of course, for another $80 to $120
they will sell you a better charger that does automatically monitor the
charge level to guard against overcharging.  Considering other types of
sophisticated chargers I've seen selling for a lot less, I suspect this
is just another way of getting more money for the complete package.

Does anyone have any recommendations for perhaps an after-market charger
that will automatically shut-off when it reaches full charge?  I don't
anticipating needing a rapid-charge system, since I always use
trickle-charging which is generally easier on the batteries.

Thanks

Evan Dallas
Woodinville, Washington
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From: Michael Daly <mikedaly_at_magma.ca>
subject: Re: [Paddlewise] VHF radio chargers
Date: Tue, 12 Apr 2005 15:05:03 -0400
On 11 Apr 2005 at 20:36, Evan Dallas wrote:

> Does anyone have any recommendations for perhaps an after-market
> charger that will automatically shut-off when it reaches full charge?

Check through catalogues of RC modelers stuff.  They use various 
batteries a lot and the chargers they use are pretty sophisticated. 
They do smart conditioning and recharging.  In spite of that, they're 
a lot cheaper than the one that Standard Horizon sells.  Google RC 
hobby shops or visit the local one if you're in the right city (i.e. 
big enough to have a decent hobby shop).

One problem will be finding one for such a low-powered battery.  The 
racers are using 2000mAh+ batteries and the standard battery for your 
unit is only 1100mAh.  One model I found on the web recommended not 
using it for a small battery.

Another thing will be adapting it to attach to your battery.  The RC 
chargers probably use things like alligator clips and such - you'll 
have to make some kind of widget to hold it onto the leads on your 
battery.  If you're adventurous, you could gut the holder you already 
have.

Mike
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From: <seakayakerjb_at_aol.com>
subject: Re: [Paddlewise] VHF radio chargers
Date: Tue, 12 Apr 2005 09:33:08 -0400
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I have the same radio (350S), and have had it for over 5 years now--have had absolutely no problems with it and have never used a protective bag either.  Has been in salt water on a couple of occasions, really cold water frequently (year round paddling on Lake Michigan).  I did attempt to remove the battery pack last summer to put on the AA battery pack--but was unable to, I hadn't removed it in a few years and it almost seemed welded in place--didn't force it for fear of needing to buy a new radio.  Anyone have an idea regarding this?
 
Back to the charger issue--I've been very careful about the charging process, paying close attention to the time factor.  I wonder how using one of my timers I use for turning on/off lights when I'm away would work--why not?  Can't imagine putting a timer in the sequence would do any harm--but I'm not an electrician or electronics expert.
 
John Browning
Milwaukee, WI
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From: Michael Daly <mikedaly_at_magma.ca>
subject: Re: [Paddlewise] VHF radio chargers
Date: Thu, 14 Apr 2005 13:35:24 -0400
On 12 Apr 2005 at 9:33, seakayakerjb_at_aol.com wrote:

>  I wonder how using one of my timers
> I use for turning on/off lights when I'm away would work--why not? 

That should work fine as long as you are always recharging the 
batteries from a "fully" discharged state.

This doesn't solve the discharge problem, but it can solve the 
overcharge problem.

Mike
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From: Tord Eriksson <tord_at_tord.nu>
subject: Re: [Paddlewise] VHF radio chargers
Date: Thu, 14 Apr 2005 19:54:13 +0200
On Tuesday 12 April 2005 15.33, you wrote:
> Back to the charger issue--I've been very careful about the charging
> process, paying close attention to the time factor.  I wonder how using one
> of my timers I use for turning on/off lights when I'm away would work--why
> not?  Can't imagine putting a timer in the sequence would do any harm--but
> I'm not an electrician or electronics expert. 

Will work well! Just be sure it doesn't switch on again,
if you forget about it!

Tord
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