ORIGINAL: Chris Smith
Just to be clear, LiFe are NOT the same as A123s. A123s are LiNP. A123s are a better choice for high dollar airplanes. LiFe batteries come from a number of different sources and may not have consistant quality.
The choice should be between A123s and LiPo. I wouldn't consider LiFe, unless the source is reputable. Even so, there is no disadvantage I can think of with A123s.
what is your source of confirmation about the quailty of the Life batteries. I run daul Life batteries and they work just fine, which are run through my "Electro Dyn amics" Battery Backer system.
Mark