Wow, LiFe’s are popular. I am using LiPos and I get new ones every 2-3 years.
Although I abuse my LiPo’s, I am intrigued by the fact that LiFe’s can take even more abuse.
I like that I can check how much charge I have in my LiPo’s. LiFe’s have to be charged every few flights as there is no way to check their charge.