DieHard Heavy Duty batteries consistently deliver the starting power and dependability your heavy duty applications need to keep your fleet in operation. With increased corrosion resistance, improved cycling capability, added vibration resistance and heavy duty case these batteries are designed to meet the needs of your commercial truck, heavy duty or agricultural applications. Reduce unwanted down time with DieHard heavy duty batteries. Product Features:Full frame stamped positive grid design provides increased corrosion resistance and superior cranking powerHigh density paste improves cycling capabilityPolypropylene ribbed case and reinforced end-walls for extra durabilityAnchor bonding locks elements in place to dramatically improve life with superior vibration resistance