[Elecraft] [K3] Real Time Clock Battery replacement

[Matt Zilmer]

Hi Geoff,

I have a K3 of similar vintage.  When I upgraded to KSYN3As, I just
replaced the coin cell while it was exposed with the sub-RX removed.
At the time I replaced it, the cell was still going strong.

Most of the CR series coin cells from around 2007 survive on the order
of 10 years (shelf life).  I think that this lifetime is generally
longer now, but it varies by manufacturer.  The cell I put in was
rated to be good until 2025.

I've used CR series cells in applications where they lasted 15 years.

73,
matt
W6NIA

On Sat, 18 Jul 2015 18:28:49 +0100, you wrote:

>In the next few days I’ll be taking apart my trusty K3 #266 to install K3SYNAs and do KBPF3 mods. As it’s seven and a half years old I could also replace the clock battery while I have it exposed or I could leave it to see how long it keeps going. Has anyone’s K3 clock battery run down yet? Any views on how long it should last?
>
>73 to all,
>
>Geoff
>G3UCK
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:Elecraft at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html
>Message delivered to mzilmer at roadrunner.com
Matt Zilmer, W6NIA
--
"Always store beer in a dark place."  -R. Heinlein