I think I have a bad cell in my new zippy...

[Metallover]

I just tried out my 4s 5000mah 4s zippy flightmax pack tonight. It's in my revo with a medusa 60-2000 and mm esc. While I was driving I got a ton of torque steer and a sound from the rear diff. damn..

Anyway, I put the pack on the blinky after I got done running it and one cell started blinking. I left the room and forgot about it. I just realized now I left it plugged for 20-30mins in and that cell is still blinking away.

I just noticed the third cell (the one right next to it) started alternate-blinking with it.

Is it just the maxamps/zippy balance blues? Will it get better? Is it a problem?