2018-10-9 · What voltage is too low for a LiFe battery? ... Here is a Thread I di d long ago on using LiFePO4 as receiver packs and the thread has a great deal of very good info in it. ... is that the A123 cells use a patented "Nano Phosphate" technology giving them the ability to put out a constant 30C and burst to 60C. When the A123's came out, the ...