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:[email protected]] 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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
