Genius Boost Pro Ultrasafe Lithium Jump Starter, 3000 Amp, 12V (GB150)

• High-output 3,000-Amp peak lithium jump starter pack for 12V vehicle batteries (gas engines up to 9.0 L, diesel engines up to 7.0 L). 
• Compact yet powerful: designed to deliver up to 80 jump starts on a single full charge (ideal for cars, trucks, SUVs, boats, RVs). 
• UltraSafe technology: spark-proof connections and reverse polarity protection ensure safe, mistake-proof operation even for non-technicians. 
• Dual-function power source: not only a jump starter, but also a versatile portable power station—recharge smartphones, tablets, e-watches (for example, up to 6 full smartphone recharges) and run 12V accessories like tire inflators, power inverters, camping gear. 
• Built-in ultra-bright 500 lumen LED flashlight with 7 light modes (including SOS and emergency strobe) adds roadside or emergency utility. 
• Rugged, user-friendly design: includes heavy-duty jumper cables, durable housing, multiple output ports (12V, USB) and ready for a variety of applications—on-road, off-road, marine, RV, remote use. 
• Trusted brand reliability: users report starting large vehicles, diesels, and heavy equipment with ease; praised for compact size, ease of use and long lifespan. 

What this means for you:
Whether you’re facing a dead battery in your car or truck, helping a friend stranded, or simply want a powerful emergency backup and mobile power station, this unit brings premium performance in a compact form.

Its high amp rating and lithium-ion technology mean faster cranking and many starts between charges; its safety features take the anxiety out of hook-up; and its multi-purpose power outputs make it a smart addition to any vehicle, boat or RV.

Ideal for these scenarios:

• Drivers of gas or diesel vehicles who want a reliable, high-capacity jump starter.
• Road-trip enthusiasts, campers, boaters, RV owners who need mobile power for 12V gear and USB devices.
• Anyone who wants a compact emergency backup with flashlight capability and portable recharge for phones/tablets.
• Technicians, fleet operators or roadside assistance providers who need trusted performance in the field.

Specifications (key):

• Amperage: 3,000 A peak – high-range performance.
• Battery Type: Lithium-ion, approx. 800 Wh capacity.
• Voltage: 12 V.
• Weight/Size: Around 6–7 pounds (various user sources note ~7 lbs) which is highly portable. 
• Warranty: 1 year, limited.
• Multimode LED flashlight: 500 lumen, 7 modes including SOS & strobe.
• Charging support: Up to ~6 smartphone charges; supports output to USB devices; supports 12V accessories.

Why it stands out:

• Many competing jump-starters are lead-acid, heavier, bulkier or offer fewer safety features — this unit’s lithium build along with spark-proof/reverse polarity design provides an edge.
• Reviews highlight superior performance compared with cheaper brands:

  • “I have the GB150 3000A and it will crank stuff easier and longer than the full size lead-acid boxes we have.” 
    

Pro tips for use & maintenance:

• Keep the unit fully charged and stored in your vehicle so it’s ready when the battery dies — one of its advantages over older lead-acid boost boxes that tend to self-discharge. 
• Use the integrated volt-meter (in some versions) to check battery health before jump-starting. 
• Store in a dry, cool place (or inside vehicle cabin during extreme weather) for longevity — lithium-ion batteries perform best when maintained and not repeatedly drained to zero.
• After jump-starting, recharge the unit promptly to maintain its readiness for the next usage.
• Use the flashlight and USB ports to get extra utility out of your investment — during roadside emergencies or camping trips, this becomes more than just a jump pack.

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.