How did you setup you cutoff?

[kalbien]

Hi

I was just running for some more time with RX8,
4s, 2000kv, 12/46 gearing, quite small track - maybe little slow, but both motor&esc were just completely cold.

However after coming home and charging my Lipos - Wide Energy 4300, 20c , one of them suddenly grew to like double size and my charger told me that "balancing voltage is too high" I guess it's dead.

Question is, if you guys set cutoff voltage for 3v per cell, or you set it little bit higher to be on a safe side? (I don't know if it was because of batteries, or because of undervoltage...)

any ideas?