I doubt the stock cutoff was 14.8 where did you read that ?

Nominal 4s voltage is 14.8v, they will drop well below that under load

No reason to have it that high you will never avoid lvc


Set it for 3.4v / cell or 13.6 and you should be fine

This will allow for variations / a single cell to drop a little lower but still not below 3.0v

Cheers