What are the failure modes of premature loss of capacity?

  What are the failure modes of premature loss of capacity?
 
  1.Suitable cycle conditions, such as continuous high rate discharge, deep discharge, low current density at the beginning of charging.
  2. The additive of special additives such as plate grid alloy and lead paste is lacking.
  3.High utilization rate of active substances, high excess electrolyte, too thin electrode plate, etc., at low rate discharge.
  4.The apparent density of active substances is too low, the assembly pressure is too low, etc.