I think that SLA is too heavy LiFePO4 battery packs are much more efficient yet have a max voltage around 14.5, within the K3 specs. A 6A pack, e.g, as in
http://www.batteryspace.com/12-8v-lifepo4-battery-packs-from-6-6ah-to-9-9ah.aspx may fit inside the KPA3 space and may be good for a few hrs of operation. These batteries need a charger with a limit on max voltage and max current, but a simple voltage regulator + a wart or a laptop PS will do. Ignacy -- View this message in context: http://elecraft.365791.n2.nabble.com/Internal-battery-for-K3-QRP-tp5268764p5270251.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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html

