Understanding Vrla deep cycle battery
While both Absorbent Glass Mat (AGM) and Gel batteries are categorized as Valve-Regulated Lead-Acid (VRLA) batteries and are commonly used in vehicles and backup power systems, they differ in several key performance aspects.
Avalve regulated lead‐acid (VRLA) battery, commonly known as a sealed lead-acid (SLA) battery,is a type ofcharacterized by a limited amount of electrolyte ("starved" electrolyte) absorbed in a plate separator or.
Lead-acid cells consist of two plates of lead, which serve as , suspended in anconsisting of diluted . VRLA cells have the same chemistryexcept that the electrolyte is immobilized. In AGMs, this is accomplished with a fiberglass mat; in gel batteries or "gel.
AGM batteries differ from flooded lead-acid batteries in that the electrolyte is held in the glass mats, as opposed to freely flooding the plates. Very thinare woven into a mat to increase the surface area enough to hold a sufficient amount of electrolyte on the cells for their lifetime.
Many modern motorcycles and(ATVs) on the market use AGM batteries to reduce the likelihood of acid spilling during cornering, vibration, or after accidents, and for packaging reasons. The lighter, smaller battery can be installed at an odd angle if needed.
The first lead-acid gel battery was invented by Elektrotechnische Fabrik Sonneberg in 1934.The modern gel, or VRLA, battery was invented by Otto Jache of in 1957. The first AGM cell was the Cyclon, patented by
Each cell in a VRLA battery has a pressure relief valve that will activate when the battery starts building pressure of hydrogen gas, generally a result of being recharged.The cell covers typically have gas diffusers built into them, which allow safe dispersal of any excess hydrogen.
Originally a kind of gel battery was produced in the early 1930s for portable valve (tube) radio LT supply (2, 4, or 6 V) by adding silica to the sulfuric acid.By this time, the glass case was being replaced by celluloid, and later, in the 1930s, other plastics. Earlier "wet" cells in glass jars used.
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