Boost XL 1500A 12 V UltraSafe Lithium Jump Starter Kit (GB50)

Unlock reliable roadside power and peace of mind with the NOCO GB50 Boost XL 1500Amp 12Volt UltraSafe Lithium Jump Starter Kit — a compact, high-output solution engineered for modern vehicles, boats, powersports gear and more.

• Jump-start dead 12-volt lead-acid batteries in seconds, thanks to 1,500 amps of peak output and compatibility with gasoline engines up to 7.0 litres and diesel engines up to 4.5 litres. 
• Get up to 30 jump-starts on a single charge, making this one of the most efficient portable lithium units in its class. 
• UltraSafe design: spark-proof clamps and built-in reverse polarity protection make it easy and safe for anyone to operate. 
• Dual-purpose smart power bank: with USB output (5 V, 2.1 A) you can recharge smartphones, tablets or other USB devices — up to six smartphone charges from one full unit charge. 
• Built-in LED flashlight with 200 lumens and seven lighting modes (100% / 50% / 10% / SOS / Blink / Strobe / Off) — great for roadside emergencies, tire changes or signalling.
• Lightweight and rugged: weighing only approx. 2.7 lbs (1.22 kg) and protected by an IP65-rated enclosure when ports are closed (dust-tight and water-jet resistant). 
• Cold/hot environment ready: with Hot-LED and Cold-LED indicators to warn when the internal battery is outside its safe jump-start operating range, ensuring optimum reliability in extreme climates. 
• Universal battery-type support: works with wet cell, gel cell, maintenance-free, enhanced flooded and AGM lead-acid batteries — ideal for cars, trucks, boats, SUVs, ATVs, motorcycles, lawn & garden equipment and more. 
• Fully loaded kit includes high-quality HD Precision Boost battery clamps (with 8 AWG silicone cable and needle-nose design for tight spaces), 12-volt car charger, micro-USB cable, microfiber storage bag and 1-year limited warranty with lifetime customer support.

Why this model stands out:
Unlike bulky traditional jump-packs, the NOCO GB50 combines high-discharge lithium-ion technology with a compact form factor that easily stows in a glove compartment, trunk or toolbox — without sacrificing capability.

Users and reviewers consistently highlight its performance match to large engine vehicles (many SUVs/trucks) plus its added value as a portable power bank and emergency light. 

Ideal for:

• Everyday drivers who want a dependable automotive emergency kit.
• Boat owners, ATV/UTV enthusiasts and powersports users needing compact jump assistance.
• Road-trip travellers, campers and off-grid adventurers who value the USB re-charging and built-in flashlight features.
• Fleet, service and maintenance vehicles where a portable, rugged jump starter is vital.

Usage & Safety Notes:

• Always ensure clamps are connected correctly (red to positive, black to negative) — the error LED will alert if reversed. 
• If a battery drops below about 2 volts and the unit cannot detect it, use the Manual Override mode (note: this disables safety protections and should only be used in dire circumstances). 
• To maintain readiness, recharge the GB50 via USB power source every 6-12 months if unused (it retains charge well but periodic check is wise).
• Store and operate within the recommended temperature bounds: operating temp is approximately −4 °F to +122 °F. 

If you’re looking for a reliable, feature-rich, ultra-portable jump starter that goes beyond just starting your vehicle — offering USB gear charging, bright integrated lighting, advanced safety features and compatibility with a wide range of vehicles — the NOCO GB50 Boost XL 1500 A delivers real value.

Make sure you're prepared for battery failures before they happen.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.