[Elecraft] Who sells a small RF quiet solar charge controller?

[David Rutledge]

 blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px #715FFA solid !important; padding-left:1ex !important; background-color:white !important; } Aaron Marroquin's post fits what you're looking for. Jim Cordill, KI0BK, at Flint Hills Radio makes an adjustable solar charge controller.
Solar 
It's small and will do what you need.  If you have a question or there is something else you would like to see in it shoot him an e-mail. 
73,David A. RutledgeAL5M


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On Friday, March 17, 2017, 17:36, Dave Corsello <kd2jip at gmail.com> wrote:

I use a Genasun GV-5 and a Bioenno Power 4.5 Ah LiFePO4 battery to power 
my KX2.  I agree with Jim.  These components work great together--but 
with one exception:  I can't float the battery with the GV-5.  When the 
battery approaches full charge, its internal monitoring disconnects the 
battery from the circuit, causing the GV-5 to go to open circuit voltage 
of >= 18 V in full sunlight.  According to Elecraft, this would fry my 
radio.  So, as a work around, I use a DPDT switch to keep the solar 
panel and the load on separate circuits, selectively connecting one or 
the other to the controller.  This way, when the panel is connected and 
the controller signals an over voltage error (according to Bioenno, this 
doesn't harm the battery), I know that my battery is fully charged.  I 
then disconnect the panel and connect the load by flipping the switch.  
I don't mean to hijack Harry's thread--hopefully this post adds value 
for him.  But I wonder if there is any other combination of small, 
lightweight MPPT controller and LiFePO4 battery that would permit 
floating the battery.

On 3/17/2017 9:16 AM, elecraft-request at mailman.qth.net wrote:
> Message: 15
> Date: Thu, 16 Mar 2017 21:48:53 -0700
> From: Jim Brown<jim at audiosystemsgroup.com>
> To:elecraft at mailman.qth.net
> Subject: Re: [Elecraft] Who sells a small RF quiet solar charge
>     controller?
> Message-ID:
>     <8ce42df0-9c51-3043-1f0a-009ce8912376 at audiosystemsgroup.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> On Thu,3/16/2017 6:11 PM, Harry Yingst via Elecraft wrote:
>> I'm looking for a small RF quiet solar charge controller to charge a battery for my K2.
> Genesun, Genasun, Genasun. They work very well and they are quiet. Make
> sure you get the right model for the battery chemistry you're using.
> They make models for lead acid, LiPO4, and Li Ion.
>
> 73, Jim K9YC

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