One of the most common causes of car battery failure is when the active material cannot sustain a discharge current which later causes a loss of plate capacity and creation of brown sediment, called sludge or "mud", which can short the plates of a cell out.
This one of the causes of car battery failure will kill the battery. Additional battery failures are positive grid growth, metal corrosion, negative grid shrinkage, heat, vibration, fast charging, and overcharging all accelerate the "aging" process.
Approximately 50% of causes of car battery failure are due to loss of water for normal recharging charging due to the lack of maintenance, or overcharging. Positive grid growth and undercharging are also one of the causes of car battery failure.
The author works for a top towing Toronto last posted an article for roadside assistance tire change services.