|Universal Battery UB4D/GEL|
Cat. No. UBG-40701
The state-of-the-art lead-acid battery is the valve-regulated type
(sometimes called "sealed" or maintenance-free), which fixes the acid
electrolyte in a gel or in an absorptive fiberglass mat. The advantage
of this design is that the battery needs no water additions, can be
operated in any position, and can be used in close proximity to people
and sensitive equipment.
Electrolyte is suspended in a silicia-based gel,
which produces a thick pasty material.