The heart of the VMAX is the unique physical and chemical structure of its plates. The special treatment and manufacturing process they undergo gains them unique reliability, strength and high performance far exceeding those of other Pb-Ca plates used in similar looking products. Using our specially designed Absorbed Glass Matt (AGM) between the VMAX plates, adds to it many physical and electrical advantages that make it superior to the Wet Lead Acid Batteries. This also maximizes the VMAX resistance to shocks and vibrations. Since the electrolyte is totally absorbed by the AGM, the VMAX is classified as ?non-spillable and non-hazardous?. A tough Tank seals and protects the tightly packed plates delivering the VMAX in a 100% maintenance-free package. Though VMAX Tanks are best known for their long life span, their capability to recover after repeated deep discharges is what makes them the favorite choice for any application. est 4-9 HOURS (40LB/18LB) RUNNING TIME WITH 50-60% DEPTH OF DISCHARGE ON 18-40LB TROLLING MOTORS. (NOTE: LONGER EST. TIME APPLIES TO THE SMALLEST LISTED RANGE OF TROLLING MOTOR POWER WHILE THE SHORTER EST. TIME APPLIES TO THE LARGEST LISTED RANGE. DIVIDE EST. TIME BY 3 WHEN OPERATING MOTOR AT WOT WITH 100% DOD (Depth Of Discharge), OR BY 5 WITH 60% DOD) CHECK OUR FULL LINE OF VMAX MARINE BATTERIES FOR LARGER TROLLING MOTORS OR LONGER RUNNING TIMES.