Very poor quality control of eTower batteries from Freedom Won.

I bought a new Fredom Won Etower Battery and it was installed 1 month ago. From the very first day it was giving problem as one cell will not charge. The person assisting me told me that I overcharged the battery which is incorrect, from the logs on the battery the over charge happened when the battery was manufactured over a year ago and not since I had the battery. Freedom Won now want to repair the battery but I bought a new battery and do not want a repaired battery that was faulty from day 1! I have also found many people have had problems with this same model battery, seems quality control is very poor at the factory of these eTower batteries. Other manufacturers use the same components without having these problems. I only have the 1 battery and no grid connection so it can not be expected that I must wait for a battery repair.