Simply powerful deep cycle battery made specifically for trolling motors. Suspension of electrolytes AGM (Absorbed Glass Matt) with a high porosity that completely absorbs and contains the electrolyte is the basis of the electrolyte suspension system used in VMAX tanks. Adding water to VMAX tanks or checking the specific gravity of the electrolyte are not necessary during the float service life. There is no use of any contaminants, including silica gels. Military Grade Plates give float or cyclic applications an additional performance and service life margin. PROS🟢 No silica gels or any other contaminants used A high porosity absorbs electrolyte CONS🔴 None that we could find