Hi Markus, thanks for interesting info.
Discharge was with 100 mA. I am using a TechnoLine BC-1000 charger. It handles the 4 cells individually. Max. charging current is 1.500 mA, discharge current max 500 mA - all selectable,. Seems to work quite well. Per-Tore / LA7NO On 9 May 2016 at 11:07, hb9brj [via Elecraft] < ml-node+s365791n7617307...@n2.nabble.com> wrote: > Per-Tore, > > With increasing cycle count, individual cells are showing differences. If > you don't charge them individually, these differences are getting bigger, > as reflected by the numbers you posted. > > You mentioned that you verified cell capacity using your charger. At what > discharge current? Most probably not at the 1.5A which the KX3 draws when > transmitting. > > While powering my KX3 with 8 internal Eneloop cells and varying output > power, I found a total internal resistance of 1.15 Ohms. A single Eneloop > cell showed 34mOhm (I have an instrument measuring Ri by applying short > discharge current pulses). In total, only 25% of the total Ri comes from > the 8 cells. Battery holder and wiring are responsible for 75%. > > 73, Markus HB9BRJ > > > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > > http://elecraft.365791.n2.nabble.com/KX3-internal-battery-problems-tp7617201p7617307.html > To unsubscribe from KX3 internal battery problems, click here > <http://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=7617201&code=cHRhYUBpZWVlLm9yZ3w3NjE3MjAxfDIwMjU3MTEyNzg=> > . > NAML > <http://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> > -- View this message in context: http://elecraft.365791.n2.nabble.com/KX3-internal-battery-problems-tp7617201p7617308.html Sent from the Elecraft mailing list archive at Nabble.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
