On Sat,9/12/2015 8:37 AM, inventor61 . wrote:
I had strongly considered the LiPo type secondary-cell power packaging option and rejected it.
There are mfrs of well protected LiFePO4 battery packs. Two I found are Battery Space and Bioenno Power. Both make packs in a wide variety of shapes to fit in the space available in existing products. They include the circuitry inside the pack required to equalize charge and avoid unsafe conditions. These batteries are not cheap, but you'll appreciate the increased energy density.
If you're concerned about fitting the battery inside the radio, buy a battery and use it outboard. I bought a 20Ah battery from Bioenno Power. It came with two connectors, one a concentric connector for charging, the other a Power Pole. I'm past the backpacking stage, but I bought the battery to support a 6M grid trip to CM79 by a younger ham. He really appreciated the reduced weight.
Both of these companies sell 12V LiFePO4 batteries range from 3Ah to 125Ah. 73, Jim K9YC ______________________________________________________________ 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]
