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.
Maintenance-free Sealed no leak design Higher cranking amps Lower self discharge Greater vibration resistance Heavy duty, no corrosion terminals 5ah3.54" x 2.76" x 4.25"