4250A Jump Starter

A compact 12V jump starter for drivers who want serious emergency starting power in the trunk, garage, work vehicle, or roadside kit. The NOCO Boost X GBX155 is shown with a 4250A rating and support for up to 10.0L gasoline and 8.0L diesel engines.

• 4250A peak jump starting power shown for large gas and diesel engines
• 12V portable design keeps emergency starting support close without another vehicle
• Heavy-duty clamps and integrated cable storage shown in the submitted product image
• Built-in indicator lights help show power and operating status at a glance
• Designed for cars, trucks, SUVs, work vehicles, boats, and emergency roadside kits

A dead battery can turn a normal stop into a roadside problem fast, especially with larger trucks, SUVs, boats, and work vehicles. This 12V jump starter keeps high-output starting support close by, with heavy-duty clamps, onboard status indicators, and a compact body that stores in a vehicle or garage without needing another car for a boost.

Product type: portable 12V jump starter
Model shown: NOCO Boost X GBX155
Peak output shown: 4250A
Engine support shown: up to 10.0L gasoline and 8.0L diesel engines
Included design shown: integrated clamps, cable storage, power/status indicators, and compact rugged housing
Use cases: cars, trucks, SUVs, boats, work vehicles, garages, roadside kits, and emergency backup.

Keep the jump starter charged before storing it in your vehicle or emergency kit. When needed, connect the red clamp to the positive battery terminal and the black clamp to the proper negative terminal or grounding point, then follow the unit indicators before starting the vehicle. Disconnect after the engine starts and recharge the unit before storing it again.

Orders are processed through Calyva with secure checkout and tracking when available. Most orders process quickly with next day shipping where available. If your order arrives damaged, defective, or not as expected, contact Calyva within 30 days and we will help with the next step.