Why it's necessary to get a jump starter?

1.The vehicle has not been used for a long time, the car battery is dead and cannot be started normally

2. Make preparation for a long driving trip

3. The weather is cold in winter and the car cannot start quickly

Why do I need a car starter instead of buying a new car battery

1. Car battery replacement needs to go to a professional car repair shop

2. The function of the car battery is normal, but it cannot be started due to an accident or cold weather

3. If the car breaks down when going out or traveling, you need to pay expensive rescue fees and send it to the car repair shop

Is the jump starter suitable for my vehicle?

B-YJS20-BU: 9.0L Gas/7.0L Diesel Engine

B-YJS40-BK: All L Gas/10.0L Diesel Engine

A-ARMOR: 10.0L Gas/8.0L Diesel Engine

NOTE:If the YESPER Jump Starter can't start the car capacity we promised, full refund

What is the internal battery capacity of YESPER?

B-YJS20-BU:59.2Wh(12000mAh)

B-YJS40-BK: 88.8Wh(24000mAh)

A-ARMOR: 74Wh(20000mAh)

Born To Jump Start

Help you out of the following dilemmas quickly and easily. Forget to turn off the light all night, encounter the extreme weather, or need a jump, Yesper jump starters help you out of desperate and get fast on the road.

Start Your Car Fast

Recommended to jump start 12 V vehicles up to all gas and 10.0 L diesel engine, like cars, boats, lawnmowers, and more.Yesper Speed 4120 will be your best road partner to jump-start your vehicle in seconds.

24000mAh Power Bank

With its multi-functional design, it's ready to charge all your devices by 3 outlets. 24000 mAh power bank to keep your devices run on a long trip.

Ok To Charge Your Car Equipment

Power up your 12-16.8 V DC car equipment on the go, ensuring your joyful driving experience. It can deliver up to 150W.

Safety First

8 Safety protection, including spark-proof protection, over-current protection, over-voltage protection, and overcharge protection, etc, ensure you and your car's security.

Low Self-Discharge,Battery Ready for 24 Months

With a super low self-discharge design,YJS40 holds a charge for up to 24 months.

Work In Extreme Weather

Yesper jump starter can work at high temperature up to 131°F and cold up to -4°F.  Built-in over-temperature protection allows the unit to turn off the output actively when the battery is at high temperature. 

The Material Uses ABS V0 Military Grade Fireproof Material

Truly achieve 0 sparks,100% safety

3 Modes LED Light To Brighten Your Night

Ideal for an adventurous night. A super-bright 1 W LED flashlight with 3 light modes including SOS and emergency strobe. 

Easy To Jump Start

You can jump start your car totally by yourself without assistance in 4 steps.

Specification Dashboard