[Elecraft] K3 battery power

[Steve Ellington]

I'm wondering what to use for battery power. The K3 requires 13.8v. I would 
like to use a typical golf cart battery and a charger but am concerned about 
the voltage from the charger being too high and possible switching noise. 
I've seen some QST articles showing DIY projects but those are rather 
involved. Does anyone make a charger/controller that you can just plug in 
and not worry about over-voltage?
Steve
N4LQ
----- Original Message ----- 
From: "Jack Colson" <jcolson7 at tampabay.rr.com>
To: "Steve Ellington" <n4lq at carolina.rr.com>
Sent: Thursday, July 15, 2010 9:52 PM
Subject: Re: [Elecraft] K3 battery power


>I did that for many years on the W3VD beacons.  The battery was in a 
>building but very rarely visited by humans.  Worked great.  The Astron 
>RS-35 is not a good choice.  I was using on and even without a load the 
>case is warm.  I am now using SS-25M for my K3 and it runs cool.
> 73
> Jack, W3TMZ
> ----- Original Message ----- 
> From: "Steve Ellington" <n4lq at carolina.rr.com>
> To: "David Guernsey" <mooo1941 at yahoo.com>; <elecraft at mailman.qth.net>
> Sent: Thursday, July 15, 2010 9:32 PM
> Subject: Re: [Elecraft] K3 battery power
>
>
>> Is anyone using full time battery power and trickle charging?
>> Considering the high price of power supplies and the security of a full 
>> time
>> backup system, it would seem to make sense. The K3 draws so little 
>> current
>> on receive that it would make sense to run it this way. I would be a bit
>> concerned about gas from the battery however.
>> Currently I use an Astron 35m and I love it but I just bet that it 
>> consumes
>> more power than the K3! Perhaps the battery/charger concept would be more
>> efficient?
>> Steve
>> N4LQ
>> ----- Original Message ----- 
>> From: "David Guernsey" <mooo1941 at yahoo.com>
>> To: <elecraft at mailman.qth.net>
>> Sent: Thursday, July 15, 2010 8:32 PM
>> Subject: [Elecraft] K3 on Order
>>
>>
>>>I have an Astron RS-35M as my power supply through a Rigrunner to my 
>>>K3/10.
>>> Enough left to upgrade to K3/100.
>>>
>>> 73s de Dave KJ6CBS
>>>
>>>
>>>
>>>
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>>
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