Product Description
CREWBOLT Heavy-Duty Battery Jumper Cable Clamps

Reliable Power Transfer for Emergency Jump Starts
Power up your vehicle with confidence using our high-performance battery jumper cable clamps — the essential solution for emergency jump-starts and everyday reliability. Crafted from premium-grade copper-coated steel, these heavy-duty clamps ensure excellent conductivity, minimal power loss, and a firm, slip-free grip on all standard battery terminals. Whether you’re starting a dead battery on a car, SUV, motorcycle, pickup truck, tractor, or cargo van, these clamps are built to handle high current loads without overheating or wearing down. Designed to resist rust, corrosion, and weather exposure, they are a dependable companion in garages, workshops, and on the road. With secure teeth for a tight connection and an ergonomic design that simplifies use, these clamps are ideal for personal, commercial, and roadside assistance applications. Keep your vehicle running smoothly — these clamps are the smart choice for safety, strength, and performance when it matters most.

Heavy-Duty Build Quality Built with copper-coated steel jaws and high-tension springs to withstand rugged use and deliver maximum grip.Superior Conductivity Ensures minimal power loss during current transfer, enabling faster and safer jump-starts.Universal Compatibility Works seamlessly with all standard battery cables, suitable for cars, SUVs, bikes, trucks, and inverter setups.Insulated PVC Grip Thick, shock-resistant insulation offers safety and control, even in wet or oily conditions.Corrosion & Weather Resistant Rustproof metal and durable housing protect the clamps from extreme temperatures and rough storage conditions.Ergonomic Non-Slip Design Textured handle design allows for easy use and firm grip without hand fatigue.

How to Use the Jumper Cable Clamps Safely:
Connect Red Clamp to Dead Battery (+) Attach the red clamp (1) to the positive terminal (+) of the dead battery (breakdown car).Connect Red Clamp to Power Supply Battery (+) Connect the red clamp (2) to the positive terminal (+) of the power supply battery (powered car).Connect Black Clamp to Power Supply Battery (−) Attach the black clamp (3) to the negative terminal (−) of the power supply battery.Connect Black Clamp to Metal Part of Dead Car (−) Finally, clamp the black clamp (4) to an unpainted metal surface of the dead car (away from the battery), like a bolt or bracket. This acts as a grounding point to prevent sparks
Important Notes:
Do not connect the last black clamp directly to the dead battery’s negative terminal.Once connected properly, start the engine of the powered car first, then try starting the dead car.Remove the clamps in reverse order after use.
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Whether you’re stuck with a dead battery in your driveway or helping a fellow driver on the road, a reliable set of heavy-duty jumper cable clamps can make all the difference. Designed for strength, safety, and convenience, our clamps ensure a quick and secure connection every time. Built to handle high current and crafted with insulated grips for maximum safety, these clamps are a must-have in every vehicle’s emergency kit. Don’t leave your next start to chance — choose performance you can count on.
Crewbolt Jumper Cable Clamps – Reliable Start. Every Time.
Heavy-Duty Construction: Built with pure copper alligator clips, these clamps offer exceptional conductivity and durability for reliable performance.
Wide Compatibility: With a capacity of 100-500A, these clamps are suitable for jump-starting cars, trucks, boats, and other vehicles.
Secure Connection: The strong grip of the alligator clips ensures a secure connection to the battery terminals, providing peace of mind during jump-starting or charging tasks.
Versatile Use: Ideal for jump-starting, battery charging, and welding applications, these clamps are a versatile tool for automotive enthusiasts and professionals.
Pure Copper Material : High Temperature Resistence