Hello Ignacy, Yes, correct, I am thinking of using Li-Po pack which is cheaply available in Hong Kong. BTW, are there any ways to keep the standy current of K3 down to minimium? Perhaps, some of the experienced K3 users may have a cue.
Li-Po batteries can be charged by multifunction intelligent charger which is also cheaply available as well. cheers, Johnny VR2XMC ----- 郵件原件 ---- 寄件人﹕ Ignacy <[email protected]> 收件人﹕ [email protected] 傳送日期﹕ 2010/7/8 (四) 10:05:29 PM 主題： Re: [Elecraft] Internal battery for K3/ QRP 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 ______________________________________________________________ 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
