Matt, thank you for the refresher. I had forgotten the info you espoused even though I was an FT back in the KX3 earliest days!
72 & 73, Bill K9YEQ, FT'er for K2, KX1, KX3, KXPA100, KAT500, W2, etc. -----Original Message----- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Matt Zilmer Sent: Thursday, May 4, 2017 6:07 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Can I overcharge the batteries in my KX3 The KX3's internal charger is intended to charge _NiMH_ batteries. Its output is a constant 200 mA. At that current level, you are unlikely to overcharge the AA cells, and all that will happen is that they'll stay warm. Theway I handle mobile ops with batteries is to run the charger in 4 hour durations, and periodically check the BT voltage on the DISPlay. For NiMH, if the voltage is 10.8V or higher, I just disable the charger. 10.8V is very close to 100%. Others recommend charging up to 11.1V, which is 100% for most formulations (e.g., Tenergy). Not sure what Sanyo recommends for Eneloops. You might wan to read up on that. Specifically for Eneloops - they hold their charge quite well, so there is little need to top them off as youmotor alongunless you'redrawing current from them all the time. If the 13.8V input is connected, it is diode steered with the battery output and any current you draw will be from the external power connection. In this arrangement, the highest voltage wins. 73, matt W6NIA On 5/4/2017 3:38 PM, Jerry wrote: > Hello, > > > > I am about to take a month long trip to California and then back to > Virginia starting this Sunday. I am taking my KX3 along with some > accessories so I would like to know - is it possible to overcharge the > NiCads or Enloops. I have a system set up on my motorcycle that will > provide 13.8vdc at 3 amps clamped. for charging some 12 v sealed lead > batteries and I am wondering if I use this output voltage and set the > timer to 8 hours on the KX3 charging system, can I overcharge the > batteries and ruin them or worse the internals of the KX3? > > > > Thank you. > > > > Best regards, > > > > Jerry, W1IE > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > mzil...@roadrunner.com -- "A delay is better than a disaster." -- unknown Matt Zilmer, W6NIA [Shiraz] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k9...@live.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
