Car Battery Terminal Connectors, 2 Pcs 4 Way Quick Release Disconnect Battery Terminal Clamp Connectors for SAE/JIS Type A Posts with Hex Wrench, Compatible With Cars, Vans, Trucks and More : Amazon.co.uk:
2-023-00 | Negative Blue Quick-release Battery Terminal
Quick Disconnect Battery Terminal - Brian Ward, Marine Equipment
CZC AUTO Battery Quick Disconnect Switch Side Post Battery Shut/Cut Off Switch Side Terminal Battery Switch Isolator for Auto Car Truck RV Boat Marine Battery : Amazon.co.uk: Automotive