Beefy Negative Battery Disconnect Switch 12V 48V Heavy Duty 300A High Current On Off Kill Switch Master Isolator For Car RV Boat Marine Trailer And Other Vehicles

Heavy-Duty Battery Disconnect Switch for 12-48V 300A ✔️ Single unit, 300A continuous, 1000A surge, fits 15-17 mm neg post

This heavy-duty top-post battery disconnect switch clamps onto the negative battery post to quickly isolate the system for safety. It's ideal for cars, boats, RVs, trailers, and other 12V-48V setups.

✅ 300A continuous rating with 1000A surge capacity
✅ Fits 15-17 mm negative posts (≈0.59-0.67 in)
✅ Corrosion-resistant brass contact and ABS housing
✅ Integrated copper clamp and tapered post for secure connection
✅ Prevents battery drain and shorts during storage or maintenance
✅ 12-month warranty included

💡 What is a battery disconnect switch used for in 12V-48V systems? This handy device helps safely isolate the electrical system to prevent drain and shorts. - Useful for cars, boats, RVs, trailers - Handy for maintenance or storage - Improves security by cutting power to the entire electrical system