Don Arlen,
Yes it has two voltage monitoring settings, PS and then BT.
I have a power supply connected, PS is 14.2V and BT is 10.5V
I disconnect power supply and PS is 10.0V and BT is 10.0V
Hope that clarifies.
73
David Anderson GM4JJJ
On 16 Aug 2014, at 00:38, Don Wilhelm
Don Arlen,
Yes it has two voltage monitoring settings, PS and then BT.
I have a power supply connected, PS is 14.2V and BT is 10.5V
I disconnect power supply and PS is 10.0V and BT is 10.0V
Hope that clarifies.
73
David Anderson GM4JJJ
On 16 Aug 2014, at 00:38, Don Wilhelm
Thanks Don and David for spending all the CPU cycles on my problem! It turns
out the 2V drop was due to operator impedance - or a loose nut behind the
controls, etc., etc. I was indeed monitoring the internal battery voltage
instead of the external battery. {heavy sigh} So, now I’ll go back to
Greetings all!
My KX3 has the set of internal NiMH batteries and currently reads 9.9v while
idling (I haven’t charged the batteries recently). When I power the KX3 from an
external 12V SLA battery - which reads 12.2V on my Fluke DMM - the KX3 reports
10.2V while idling. I might expect the KX3
Re: …reads 12.2V on my Fluke DMM - the KX3 reports 10.2V while idling.
Arlen,
My first thoughts are that you need to fully charge the battery. I don’t have
a lot of experience with lead acid batteries, though.
The input diode (CMS04 if my memory is correct) should only account for
Arlen,
I wonder if what you are seeing on the display is the internal battery pack
voltage rather than the external power supply voltage, either are selectable
from the menu. The internal pack may increase slightly when the load is removed
if you are running from external batteries.
Sorry if
Hi Mark,
Thanks for the response!
I’m guessing that perhaps you’re considering that the voltage of the SLA is
sagging when it’s running the KX3. I wondered that too - so I measured across
the terminals of the SLA while it was powering the KX3. It still measured
12.2V, so it wasn’t sagging.
David,
I wasn’t aware of the ability to choose which supply (internal Vs. external)
was being reported! Thanks for bringing that to my attention. I’ll bet you’re
exactly right - that the internal battery voltage rises a bit when external
power is supplied. I’ll check this out as soon as I get
Arlen,
As far as I know, there is no selection for observing the battery
voltage vs. the external voltage. The displayed voltage should be the
higher of the internal batteries or the external batteries. There is a
diode drop, so expect a reduction of 0.3 volts from the measurement at
the
Arlen,
I just measured the terminal voltage of several SLA and AGM batteries.
After not being charged for over a week, they all measured in excess of
13 volts. So my conclusion is that your wall-wart charger is not fully
charging your battery.
A normal float charge for an SLA battery should
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