HIGH-PERFORMANCE JUMP STARTING - This jump starter's powerful 1500 A peak current quickly starts low-voltage and fully-drained batteries. This jump starter battery pack has a 45 C high-rate lithium battery that can start 6.0 L gas/3.0 L diesel engines and other 12 V vehicles like motorcycles, cars, SUVs, pickups, or lawnmowers.

ULTRA POWERFUL BOOST - The smart boost mode automatically detects the battery's voltage. this unlocks the button, which can be pressed to start fully-drained batteries. COMPREHENSIVE SAFETY - This portable supercapacitor lithium car jump starter has 8 integrated protections including reverse polarity, reverse connection, overcurrent, overvoltage, overload, overcharge, over discharge, and short circuit protection.

Ensure your trip is safe and smooth. PORTABLE & COMPACT - With an overall size of 5.5×3×1 inch and a item weight of 0.95 lbs, it is very easy to store in a car or a travel bag.Portable Power Supply: With dual USB 3.0 5V/3A, 9V/2A, 15V/1.5A output, this car starter battery pack can be used as a power bank to charge smartphone, and other USB devices.

Compared with bulky lead-acid jump starters, this compact jump starter brings more convenience and peace of mind to your trip. 5-IN-1 MULTIFUNCTION - This device functions as a jump starter, portable power bank, and an LED flashlight with 3 modes (flashlight, strobe, SOS).

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STARTING A DRAINED BATTERY: 3000A Car Jump Starter easily starts your battery in seconds - up to 40 jump starts on a single charge - and rated for gasoline engines up to 7.0-liters and diesel engines up to 5.5-liters. Especially in extreme temperatures(-4°F~140°F), YUSMAN Car Jump Starter is an indispensable tool when you're out on your own.

SMART SAFTY PROTECTION: The battery jump starter works with intelligent jumper clamps which provide 8 safty protections to ensure it's safe to use. Safely connect to any 12-volt automotive car, truck, motorcycle, boat, RV or tractor ATVs, UTVs with our mistake-proof design featuring spark-proof technology and reverse polarity protection.

PORTABLE POWER BANK & 3.0 USB CHARGER PORT: Designed with 2 USB outputs (5V/3A)and (5V/2.4A), the quick charge 3.0 USB port can fully charge your cellphones, tablets, and other mobile devices at the fastest speed possible. The car jump starter can save you 50% of the time when charging your cellphones, tablets, Kindles, or digital cameras.

LED FLASHLIGHT: The LED work light has 4 modes: Normal, SOS, Strobe, Warning Light. This multi-purpose flashlight is great for camping, outdoors, indoors, emergencies, travel, etc.

IN THE BOX: The package includes a Portable Lithium Car Battery Jump Starter Pack, Heavy-Duty Battery Clamps, USB Type-C Charging Cable, User manual.

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【Powerful Jump Starter】3000A peak current and enhanced intelligent clamp, CY53 portable car battery jumper starter can immediately restart your 12V vehicle (especially for vehicles up to 9.0L gasoline/8.0L diesel) at -4~140℉, over 1000 charging cycles, standby time up to 24 months, always ready to help.

【Ultra Fast Cordless Inflation】45000+RPM High-efficiency power motor, providing airflow 40L/Min. Inflate a small car tire [24-36PSI] in about 1 minute. Intelligent LCD display screen, real-time display, accuracy of up to ±1PSI. Portable tire inflator suitable for SUV and other small and medium-sized cars, motorcycle and bicycle, ball.

【Extreme Safe】Battery jumper starter equipped with 10 intelligent safety protections, which can prevent polarity reverse connection, eliminate spark risk, and protect the battery from damage. Even if the connection is incorrect, sparks will not be generated, the car battery jump starter is 100% safe, no sparks.

【All-in-one Jump Starter】Not only booster, but also air compressors, power banks and flashlights. 2 USB output and 1 input interface, QC3.0 fast charging. 400 lumen 3-mode LED flashlight (flashlight, strobing and SOS), The ultra-bright light can help you start your car more conveniently at night, battery booster can also work as a 74Wh large battery capacity portable power bank to charge your smartphones, tablets, or other USB electric devices.

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【Efficient Car Jump Starter】The portable jump starter can instantly restart a zero-voltage vehicle within seconds, even at -20°C ~ 60°C. It is specially designed for car starting, suitable for cars, minivans, SUVs, electric cars, pickup trucks, minivans (12V), motorcycles, and small yachts. 4 different nozzles to inflate cars, bikes, balls and more.

【Powerful Performance】High rate battery, specially designed for car starting. Easy start large or small cars, unlimited models.

【Preset Tire Pressufe, Quick Inflation 】Eliminates the need for repeated adjustments and checks, supports accurate tyre pressure detection and 4 selectable units (PSI, BAR, KPA, Kg/cm²), and automatically shuts off when the preset pressure is reached.

【Power Bank】XLONYJT car jump starter is FCC, ROHS, CE, UL certified. You can use it as a portable charger to charge USB devices such as smart phone, Kindle or bluetooth headset .

【Emergency Work Lighting】 Provides you with light when changing tires or troubleshooting at night. There are also 3 modes as SOS mode, flash mode , and SOS rescue light.

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