[snellemin]

Lipo's can have the same live cycle of A123's if you don't abuse them and only charge up to 4.1V per cell and don't go below 15-20% capacity. Try abusing lipo like you would with A123's and see what happens. I too have have over 40 cells of A123's and they are still in use.

I have better off the line throttle reponse on my GTP with 4s2p A123's than with a 5000mah 4s1p lipo. Motor used is the Hacker 4000kv C50-L and Tekin RX8. With lower kv motors I don't see a difference unless I start to overgear and A123's come up on top again.

On my Ebike I know when I my A123's are at optimum operating temp, when I start to see an increase in my top speed.