A Sealed Lead-Acid Battery Is More Common Than You Think

French physician Gaston Planté originally introduced lead-acid batteries to the world way back in 1859. By the late 19th century, they had become the first commercially available rechargeable batteries. These batteries continue to be used today, but by the 1970s, the world was introduced to some improvements: the VRLA (or valve-regulated lead-acid), more often referred to as the SLA (or sealed lead-acid) battery, which breaks down into two forms: first is the AGM (or Absorbed Glass Mat), which stores electrolytes in glass mats (rather than allowing them to float freely). This form is safer to use and more environmentally …read more