Thanks for all the replies Guys.To answer some of the questions;
Yes the charger is rated for li-fe Po4
Yes it has been set correctly
I have 4 packs in total one pack seems to balance spot on the other 3 are .6v out.
So is it the charger or 3 bad cells in seperate packs purchased seperatley?
If I run a seperate balance program after the so called balance charge it does balance to within .01v but it does this by discharging the high cell.
Confusing eh.