Hi Steve, I'm following this topic with great interest! I've been using my K2 for extended operations (8 hours) from SOTA summits and have been lugging a 5 pound 7AH SLA. Needless to say I'm very interested in going on a weight diet for the K2!
I've had good success using external 1AH LiPOs for smaller rigs (ATS-3 and Weber Tri-Bander) but they're CW only and band limited. They're also very inflexible for quick band/mode, where the K2 shines. I've had zero problems with LiPOs but I religiously charge and store them per manufacturer's specs. I'm also a little leery of internal batteries of any type. Since I already have a balancing charger for LiPOs, I've been considering a larger capacity LiPO (e.g. 4.5 AH available on eBay for <$25) for the K2. For comparison, this battery weighs <12 ounces versus the 5 pound 7 AH SLA, so it weighs 86% less and probably has sufficient life for most of my operations. I'd be interested to hear any comments from others about any leakage problems with internal batteries. 73, Bill W4ZV -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-LiFePO4-replacement-for-internal-SLA-battery-in-K2-tp7607467p7607473.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 Message delivered to [email protected]

