11.1V 3C 1800 Lipo Charge ?

[nam6869usmc]

Bought my Son a Blade 400 awhile back and the inal battery would not charge. Went back to the store and he had another one from the back room not new, this one runs only a few minutes if that and the B400 falls to the ground. My Son bought a new charger last night a> Dynamite Passport AC/DC Lipo 6S, my question is, when he started the charge the Balancing Cell1 & Cell2 lights started blinking and never stopped so he just unplugged it, does this mean that Cell1 & Cell2 won't charge or those two cells can't balance