Problems charging first Lipo

[mustbnitro]

I have a True R/C 8000MAH 4s pack, MRC 989 charger, and an astro blinky balancer. I set the MRC 989 to 8000MAH, 8Amp charge and 4 cell Lipo settings. After 20 minutes, the voltage is soaring to 16 volts. Now the Astro blinky balancer has been on it for about 4 hours and it is not balanced yet! To worry me, I have not seen the second cell light come on on the balancer. What could be wrong or am I doing wrong???