Nidge, I don't have the K2 anymore, but still have the battery. It's a Yuasa NP2.3-12, and, as you say, it's really intended for standby use. I had a long chat with a fellow from the UK company I bought it from (sorry, I can't remember the details), and he told me that he was using the same battery in a relatively deep cycle application with no ill effects on storage capacity. And that indeed, is what I have found here. That's not to say that a battery designed for deep cycle applications wouldn't be better, but at what price? My SLA here has been hit hard on many occasions and is still working well after 3 years of use. Obviously if you compare it with a battery of a greater capacity, then it won't last quite so long. I suppose it just depends upon how critical it is that you don't run out of juice.
73, Stephen G4SJP On 7 November 2011 21:19, Nigel (Nidge) Smith <nig_sm...@o2.co.uk> wrote: > Hi All > > I recentley aquired a complete battery kit for the K2 off of Ebay. > The kit had been purchased by the seller but never built and came > complete with the Powersonic PS-1229 battery. > > Now here's the rub. The battery must have been sat for sometime > and now refuses to charge. After 16hrs of charge the PD across the > terminals is 10.5Volt and when the K2 is switched on the terminal > voltage drops to about 3.5Volt. I have charged it from a PSU supplying > 14.1Volt. > > I'm trying to find a supplier in the UK as I expect shipping from Elecraft > direct will be a bit high, my order last week for a speaker and some screws > notched up a whopping $28 shipping bill. The likes of RS have it listed > but > discontinued and I expect Powersonic UK will only be interested in multiple > orders, I have emailed them anyway. > > I know that there are cheaper Yuasa NP2.1-12 (2.1Ah) batteries but these > are apparently spec'd for standby use for Alarm units and such, other than > that > the largest capacity I can find is 2.3Ah. Would the 0.6Ah difference make > a difference?? > > If anyone in the UK uses their K2 with an internal battery what would > your recommendations be. > > Regards > > Nidge (G0NIG) > > IO93dv > > ______________________________________________________________ > 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
