sometimes if you have a weak cell, the charger will run and run to try and achieve full charge, the result is heat, and evaporation of the electrolyte. Or there could be leakage and this causes the same thing. may want to go to autozone or orielys and have them load tested.
Many living in this generation shall never see the grave, JESUS gave us revelations and the time is very near. Dont be a soul that stands before GOD on judgment day and be told "depart from me, I do not know you".
REPENT, RECIEVE, REJOICE!!!