Petr,
Those "coin cell" batteries last a very long time, the current drain is
very low.
A couple minutes over a "few months" is also rather tight tolerance for
the internal clock. Even a computer clock can be expected to drift some
unless sync'ed with a time standard regularly. The K3 clock is a
similar design. It is not a precision long term timepiece like a watch.
So, I have to ask - did you ever observe it over several months some
time ago? If so, did it have better stability then?
If you do not have the subRX in your K3, it is easy to change the
battery, so why not just change it for your peace of mind.
OTOH, if you do have the subRX and/or the K144XV, I would suggest
monitoring it for several months before deciding to change it.
73,
Don W3FPR
On 9/6/2018 3:49 PM, Petr, OK1RP/M0SIS wrote:
Hi,
sorry for stupid question.
The internal clock seems to delaying for couple of mins during few months on
my K3 (built mid 2008).
Does it means that an internal battery cell life in my K3 is ending?
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