Mayville Engineering Quadrex- E model The Mayville Engineering Quadrex- E model Battery requires 4 batteries to replace it. The price above includes all 4 of them.The Mayville Engineering Quadrex- E model Battery cross-references to the below.Double check all the specifications of your battery with the cross reference we list here before purchasing & installing.Requires special deep cycle battery. Please check to make sure these specifications work for you. The state-of-the-art lead-acid battery is the valve-regulated t. . . 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. Additional benefits: maintenance-free,sealed no-leak design, higher cranking amps, lower self-discharge, greater vibration resistance, heavy duty, no-corrosion terminals. 63.4 12 90 615 12 6.63 9.06 1 Year SLA Universal Power Group Yes http://site.apexbattery.com/logos/mayville engineering.jpg 806593458262 New Z U