Super-Duty booster cables 20 ft/4 Gauge have 300 percent more power than 10 gauge cables. Patented Cinch-Lock technology for safer and easier jump starts. Simple, safe and ultra secure. Whether it's your vehicle or you are being a good Samaritan, jump starting a battery is never a pleasant task. The most difficult and potentially dangerous part of the job is securely attaching the booster cable clamps to the battery posts.