I have a set of Trojan t1275 flooded batteries Removed from a Gem for lithium upgrade. These are the heavy duty Trojan T1275(relabled for Continental) 140ah, 1200 cycle rating. Little use before removal. Set of 4 new on Amazon cost $1600. . No cores needed. Guaranteed for 30 days. If not happy you can return for full refund. Located in Naples,fl