DieHard AGM Platinum Battery: 51R Group Size, 435 CCA, 540 CA, 75 Minute Reserve Capacity, Best For High Electrical Demands

Part # 51R-AGM. Brand new, never used, manufacture date code 4/25, 

DieHard Platinum AGM batteries are engineered with Stamped Grid technology, which features a stronger and more durable positive and negative grid design. Constructed with stamped grid technology for 3X more corrosion resistance, increased durability and full grid utilization for 60% more electrical flow compared to other grid designs