ORIGINAL: All Day Dan
Thank you Mr. Moderator. What I was looking for was some kind of data that discusses the life expectancy of the A123 batteries or some way that the average RCer can determine that his batteries are approaching their end of life. I know the guys at my field usually wait until that happens and, as expected, it does was they are flying. That long missive you sent me to does not discuss it nor do I know who the author is or what his qualifications are to even discuss it. Do you know of any test data that can tell us when those batteries are going to fail or how to determine when a pack is coming to its end of life? Dan.
PS, No, I'm sticking with the eight track.
You can tell if the battery is coming to the end of life by cycling them.
I made a fake radial engine from 10 cells. In the beginning it would power my Lazy Ace 6 minutes. After about 400 flights I could get barely 4 minutes.