[Elecraft] K3 Current Drain When Off

[Ron D'Eau Claire]

FWIW, I just measured my K3 and it draws 38mA when switched off. Mine is
also "older" - way back in early production.

73, Ron AC7AC

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jim Brown
Sent: Wednesday, October 16, 2013 12:16 PM
To: Reflector Elecraft
Subject: Re: [Elecraft] K3 Current Drain When Off

Nope. I measured both units several times, and just now repeated the
measurements.

73, Jim

On 10/16/2013 11:23 AM, Eric Swartz - WA6HHQ, Elecraft wrote:
> Hi Jim - you must be misreading the meter by several decimal points 
> :-)
>
> We just measured several K3s in the lab and they both draw less than 5 
> mA when off.
>
> Eric
> elecraft.com
>
> On 10/16/2013 10:37 AM, Alan Bloom wrote:
>> I just measured my fully-loaded K3/P3. They draw 1.94A on and 4.3 mA 
>> off.
>>
>> Alan N1AL
>>
>>
>> On 10/16/2013 10:07 AM, Jim Brown wrote:
>>> I recently set up four solar panels and a pair of 6V golf cart 
>>> batteries to run my station. When I first set it up 6-8 weeks ago I 
>>> was getting 35 Ah per day. Now with the sun lower in the sky and the 
>>> panels shaded by my tall trees, it's more like 25 Ah/day.
>>>
>>> The batteries didn't seem to be holding a charge, and I thought they 
>>> might be defective. Then someone noted that K3s pull some current 
>>> when they're switched off, so I just measured mine. Sure enough, 
>>> when switched off, my oldest one is pulling 420 mA and the next 
>>> oldest one is pulling 350 mA. The combined load is 18.7 Ah/day! That 
>>> load, combined with a a few hundred mA for antenna switching relays 
>>> is what's draining my batteries.
>>>
>>> Is there a fix for my K3s short of an external switch to disconnect 
>>> them from the battery?
>>>
>>> 73, Jim K9YC
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