Charger and Battery Pack Problem

Had a low battery event on Christmas Eve. Towed home and a few days later I checked voltage and balanced the back. Chart below. The Quick-Charger brand charger is not working correctly I believe and the pack was past due for balance.

December 24 Battery Low Voltage Event, Vehicle towed home and Voltage checked a few days later with a light load with fan on high and lights          
  Battery # First Test Volts Loaded Charged Discharged
Front Box 0   2.47    
  1   2.58    
  2   2.71    
  3   2.52 X  
  4   2.58    
  5   2.73    
  6   2.85   X
  7   2.87   X
  8   2.70    
  9   2.76   X
  10   2.81   X
  11   2.78   X
Rear Box 12   2.70    
  13   2.73    
  14   2.20 X  
  15   1.90 X  
  16   2.59    
  17   2.71    
  18   1.86 X  
  19   2.64    
  20   2.26 X  
  21   2.74    
  22   2.78    
  23   2.74    
  24   2.74    
  25   2.00 X  
  26   2.65    
  27   2.20 X  
  28   1.61 X  
  29   1.51 X  
  30   2.70    
  31   1.60 X  
  32   1.54 X  
  33   1.66 X  
  34   2.78    
  35   2.73    
Center Box 36   2.76   X
  37   2.20 X  
  38   2.77   X
  39   2.66    
  40   1.80 X  
  41   2.70    
  42   2.67    
  43   2.74   X
  44   0.44 X  
  45   2.64    
  46   2.47 X  
  47   2.64    

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