Usage Tips:Protective cover battery terminals for RV 3/8in stud type B1、250A Power: Battery bulkhead connector has an impressive 250A current, which can offer fast and efficient power for vehicles like cars and boats quickly. 2、Protective Cover: The battery terminal comes with a built in protective cover. This innovative design effectively prevents dust and other debris from entering, thereby reducing wear and tear and extending the lifespan of the device. 3、Red Black Pair Battery Connectors: The package includes a red and a black thru panel battery bulkhead connectors, and 2pcs cables, providing ample power to vehicles such as cars, boats, etc. 4、Long Durability: Made with copper materials, this thru panel battery connector is built to last. With its protective cover lessening potential damage, can deliver reliable performance for a long time. 5、Wide Compatibility: The battery charger post is widely applicable to various vehicle types including cars, marine vehicles, RVs, trucks. You don't have to worry about compatibility issues.