Restore power, reliability, and confidence to your vehicle’s electrical system with the Big 7 Complete Battery Cable Upgrade Kit. Designed to replace worn, undersized factory wiring, this kit dramatically improves current flow for faster starts, stronger charging, and cleaner power delivery. Built with premium materials and obsessive attention to detail, it’s a true better-than-factory solution—whether you’re staying stock or planning serious electrical upgrades down the road.
Important Note
System Upgrade: Expands on the traditional Big 3 upgrade by improving seven critical power and ground paths
Performance Gain: Reduces voltage drop to improve starting, charging efficiency, and electrical reliability
Material Quality: Made with SAE-approved, fine-strand pure copper cable—no CCA
Future Ready: Supports stock systems today and higher-output alternators and accessories tomorrow
Ease of Install: All cables are pre-labeled with military-style terminals for straightforward installation
What’s Included (Big 7 Explained)
Alternator Lead: Alternator output to battery positive
Battery Ground: Battery negative to frame/body
Engine Ground: Engine block to frame/body
Starter Lead: Battery positive to starter
Fuse Box Lead: Battery positive to fuse/relay box
External Fuse: ANL fuse added to protect high-current routing