[Elecraft] KX3 feature request: mAh counter

Al Duncan ve3rrd at sympatico.ca
Thu Jan 21 08:58:08 EST 2016


There are a number of compact devices available that do that and more. I use
the miniature "Watt's Up" watt meter/power analyzer which displays battery
voltage, current, mAh, watts and Wh. It came with APP connectors already
installed on short pigtail wires. It seems to be available from Amazon.com 
http://www.amazon.ca/Watts-Meter-Analyzer-WU100-Version/dp/B001B6N2WK 
It is powered by the battery it is monitoring and is reset by momentarily
disconnecting it from the battery.
73, AL - VE3RRD

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of David
Orman
Sent: Thursday, January 21, 2016 8:08 AM
To: Elecraft Reflector
Subject: [Elecraft] KX3 feature request: mAh counter

Hi,

A feature that would be very handy (if possible) would be a mAh counter
that could be reset as needed. With many of the batteries we use in the
field (LiFePO4 external or high quality NiMH internal) having relatively
flat discharge curves, monitoring voltage doesn't give you a very good
indication of state of charge.

If there were a counter for mAh usage that could be reset as needed (new
external pack, internal batteries swapped, moving from a PSU to battery) we
could more accurately determine state of charge. Better yet, a configurable
alarm coupled with this would be amazing.

Hopefully this would be possible as we already have current draw available,
as I could see it being very useful for those of us operating portable,
ensuring we always know when to swap out/charge our batteries instead of
seeing the voltage drop relatively suddenly and needing to swap in a
hurry/at a non-ideal time.

Thank you,
David
K5DJO



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