[Elecraft] External battery for KX2, field day and SOTA

[Jim]

 Mine are also  LiFePO4 and extremely trouble free

Jim

    On Monday, June 1, 2020, 9:17:16 PM PDT, Eric Norris <norrislawfirm2 at gmail.com> wrote:  
 
 Jim,
These were LiFePO4 (Lithium Iron Nanophosphate) A123 packs, sold then in 4S1P, 4S2P, and 4S4P configuration.  Totally different animal from what you are talking about, and as I said, no internal balancing.  They had balancing harnesses for hooking up to Cellpro 4S and 10S chargers.  The individual cells were much larger than 26650 cells.  
73 Eric WD6DBM