Lead-Acid batteries can be found in everything from vehicles and equipment, to battery backup systems, and more.  Reliability and relatively low-cost technology have kept lead-acid batteries relevant since their invention in 1859.  Because the lead from the batteries is almost entirely recoverable, they continue to provide value to consumers even after their practical use has expired.

Although battery technology has grown since the invention of wet cell lead-acid batteries, the technology behind lead-acid batteries has not changed much since the mid 1970's, when SLA batteries first began being produced.  SLA battery technology grew to become popular in applications where leakage and maintenance was an issue.  Some examples include motorcycles, ATV, snowmobiles, and battery back-up systems.

There are two primary types of lead-acid batteries: Wet cell (flooded) and SLA.

Flooded or Wet Cell Batteries

Flooded batteries are used to provide cranking power to starters in vehicles.  These type of batteries are typically measured in CCA (cold cranking amps).  Deep cycle batteries are designed for use in, among other things, golf carts and boats, where a deeper discharge is required.

VRLA Batteries

The terminology VRLA (valve regulated lead-acid), SLA (sealed lead acid), and MF (maintenance free) are often used interchangeably to describe the same type of battery. SLA batteries are typically found in one of two types: AGM (Absorbent Glass Matt) and Gel Cell. AGM batteries contain micro-fiber glass mats that absorb electrolyte solution. They are measured in AH (amp hours) and used in battery backup, telecommunications and network systems, emergency lighting, vehicles, and more. Gel Cell batteries are used in many of the same applications that AGM batteries are, however their technology is different. Gel Cell batteries contain silica to produce a gel-like immobilized solution. While there are fundamental differences between AGM and Gel Cell batteries, both types offer increased charge capacity and depth of discharge, decreased charge time, resistance to low temperatures and vibrations, and require less maintenance than flooded batteries do.

Applications