Shipment contains TWELVE of 12V 10Ah rechargeable SLA batteries with T2 type terminals for National Battery C15A. Please reuse your cables and connectors for your unit National Battery C15A. we ship only batteries. Replacement batteries supplied by RightPrice Batteries are of high quality, designed to meet or exceed original OEM specifications. They were manufactured by ISO certified companies. Spec: 12V 10Ah, LxWxH = 5.95 X 2.56 X 4.37 inch, Weight = 7.05 LBS/unit.