I've been using the Powergenix NiZn cells too, and they do give a usefully higher pack voltage than even the Energizer Lithium AA cells. They are not as easy to manage as Nimh cells, however. You have to use the supplied charger with them, which seems not to initiate recharging unless the cell is significantly drained. This makes it hard to keep them topped up. It also seems to be hard to discover the state of a given cell since the open circuit voltage does not fall much when nearing depletion. Their total capacity under load appears to be quite a bit less than their ratings. Basically there isn't enough information about their characteristics or charging requirements to manage them optimally. Maybe that will change with time, but they don't seem to be catching on, since I've found them at "Tuesday Morning" stores, which seems to be where many failing products go to die.
Chip AE5KA On Mon, Mar 28, 2011 at 12:30 AM, Leigh L. Klotz Jr WA5ZNU <le...@wa5znu.org > wrote: > Those are 6.6v, so I guess you use a pair? > > I've been using LiFePO4 in a lot of things, but haven't seen these that fit > in the KX1. At 700mAH they're a bit small, but the constant operating > voltage is nice. > > You might take a look at these, which are available at Fry's and Amazon: > http://www.powergenix.com/?q=products/nizn-quick-charger > > At 1.8v charged you get almost 11v out of 6 of them in the existing AA > slots. Of course, you have to remove them to charge. The self discharge > isn't as good as LiFePO4 but it's not bad either. > > Leigh/WA5ZNU > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/KX1-A-LiFePO4-internal-battery-option-tp6213539p6213762.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 > ______________________________________________________________ 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
