The 512 is an XS Power battery installation accessory. XS Power lists it as: 680 Series and XP750 Stamped Aluminum Side Mount Box no Window. The specifications below come directly from XS Power's June 2026 distributor data. Verify voltage, group size, polarity, dimensions, and application requirements before ordering.This Listing Includes: (1) XS Power 512 680 Series and XP750 Stamped Aluminum Side Mount Box no WindowSpecifications Model 512 Product Type Terminals, Hardware & Hold-Downs Warranty 1 year UPC 692209013587 Package Length 10 in. Package Width 8 in. Package Height 4 in. Package Weight 1 lb. Available from JS Alternators.PROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.For more information, visit www.P65Warnings.ca.gov.