Gel Battery – Definition, Glossary, Details – Solar Mango

Gel battery is a VRLA (Valve Regulated Lead Acid) battery with a gelified electrolyte; the sulfuric acid is mixed with fumed silica, which makes the resulting mass gel-like and immobile. Gel electrolyte batteries are designed to offer reliable, maintenance-free power for solar energy applications where frequent deep cycles are required and minimum maintenance is desirable.