It all depends on the RTC current. A nice graph of expected life vs current
(uA) for a number of CR cells is in
http://www.varta-microbattery.com/applications/mb_data/documents/sales_literature_varta/HANDBOOK_Primary_Lithium_Cells_en.pdf
I had my K3 for 3 yrs when I upgraded the synth cards and I
I have K3 serial number 7 and I forgot it had a realtime clock or the
last time I set it. It is off about 30 seconds now.
73,
Vic, 4X6GP/K2VCO
Rehovot, Israel
http://www.qsl.net/k2vco/
On 18 Jul 2015 20:28, Geoffrey Downs wrote:
In the next few days I’ll be taking apart my trusty K3 #266 to
in
No data here, Geoff; my K3 is only about 15 months
old.
Likely irrelevant but the battery in my old
TS-570DG was over 15 years old and still working
when I replaced that battery a year ago. But the
TS-570 was little used after I built my K2
starting in 1999 (which then became my primary rig
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
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
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