Sealed Lead Acid or Valve Regulated Lead Acid Battery

SLA and VRLA

SLA and VRLA are different acronyms for the same battery, Sealed Lead Acid or Valve Regulated Lead Acid. This battery type has the following characteristics: Maintenance-free, leak-proof, position insensitive. Batteries of this kind have a safety vent to release gas in case of excessive internal pressure build up

What is the difference between VRLA and traditional wet batteries?

Wet batteries contain liquid electrolyte and do not have pressurized sealing vents; they must be installed upright and can spill and cause corrosion if tipped or punctured. Wet batteries lose capacity and become permanently damaged if left in a discharged condition for any length of time or are continually over-discharged.