Efficient charging solution: Innovative battery charger post design provides efficient access to battery terminals for a seamless charging experience. Installation: Fits a standard 11/4 inch hole; ideal for installation in cars, trucks, boats, and ATVs. Safety first: Distinct black and red terminals to prevent cross connections during charging operations. Construction: Built from grade nylon, iron, PVC, and brass for long life in harsh automotive and marine settings. Use scenarios In a car or truck, mount the charger post to enable quick and reliable access to battery terminals during routine charging and maintenance. On a boat, use the post to maintain 12 V marine batteries with clear color coding to avoid accidental cross connections. For ATVs and other offroad vehicles, install in a convenient location to facilitate safe and durable charging in rugged environments.