Bantam bc6 wont charge

[J_WOODY]

hi all,
i need some help, i've just gone to put my lipo's on charge on my bc6 charger,
and the display is reading : battery vol err , cell connect,
i've connected it all up a usual, all connections are good, the lipo's got 6.8v in it, so it hasn't discharged to far, anyone got any ideas ? or is it broke?

thanks in advance

Jay

p.s. it starts to charge and cuts out after 5 secs