What happens when a Cap fails?
What happens when a Cap fails?


The device will fail to function properly


  They're measuring low, ~ 32uF instead of ~ 100 uf and the ESR is
  higher than normal. ...Is that enough to cause the charger not to
  work?


No.


  Those are the only damage to the board, mostly cap failures. 


Those are only damages that are VISIBLE. There could be totally fried ICs, diodes, transformer coils shorted, etc, which might be non-visible.


  Do you think If I replace them the charger will go back to normal?


You can try, but going back to normal functionality has a very remote chance.