YESPER SPEED 4120 Multipurpose Vehicle Jump Starter

 Yesper Speed 4120 is a portable lithium-ion battery car jump starter pack that can deliver 4120 A peak current to jump start 12 V car vehicles up to all gas engines and 10.0 L diesel engine.  Weighing at 1.71 ibs, Multipurpose Vehicle Jump Starter is great to hold in your hand and occupies only a fraction of your car trunk. Multipurpose Vehicle Jump Starter features 8 safety protection, making it safe and easy for anyone to use. Multipurpose Vehicle Jump Starter a powerful car booster that doubles as a 24000 mAh power source for recharging USB devices and your 12-16.8V DC car devices. Built-in 3 modes of LED light, like a flashlight, SOS, strobe, helps you see your engine, change a tire at night, or even warn oncoming traffic when you need roadside assistance. The most desperate thing is that a dead battery leaves you stuck on the roadside, time to put a YESPER JUMP STARTER in your car. Always a YES on the go.

Speak The Fact Of Power

No tricks,only facts, and figures here. Yesper Speed 4120 is the most powerful , featuring at 4120 A peak current, 24000 mAh (88.8 Wh).

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. Whether you forget to turn off your car light overnight or encounter extreme weather, which lets you cannot start your car, Yesper Speed 4120 will be your best road partner to jump-start your vehicle in seconds.

Large Battery Capacity & Long Standby Time

One for many times. Equipped with 24000 mAh battery and low self-discharge  (≤120 uA), one full charge can use up to 60 times. It can last 6-12 months after being fully charged. However, recharging it every 3 months is recommended.

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. 

24000 mAh 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.

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.

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.

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. 

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.

Easy to Jump Start

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

Port Features

Specification Dashboard

What's In the Box