Yesper Yjs40 Battery Jump Starter: The Ultimate Portable Power Solution

YESPER Car Jump Starter, 3000A Peak 20000mAh Portable
YESPER Car Jump Starter, 3000A Peak 20000mAh Portable from


In today’s fast-paced world, a dead car battery can be a major inconvenience. Thankfully, with the Yesper YJS40 Battery Jump Starter, you can say goodbye to the hassle of finding someone with jumper cables or waiting for roadside assistance. This compact and powerful device is a game-changer when it comes to jump-starting your vehicle.

Key Features

1. Powerful Jump-Starting Capability

The Yesper YJS40 Battery Jump Starter is equipped with a high-capacity lithium-ion battery that delivers an impressive 1000 amps of peak current. This means that it can jump-start a wide range of vehicles, including cars, trucks, motorcycles, boats, and even RVs.

2. Portable and Lightweight

One of the standout features of the Yesper YJS40 is its compact and lightweight design. Weighing just under 2 pounds, this jump starter can easily fit in your glove compartment or backpack. Whether you’re on a road trip, camping adventure, or simply commuting to work, you can have peace of mind knowing that help is just a button press away.

3. Multi-Functional Device

Besides jump-starting your vehicle, the Yesper YJS40 also serves as a versatile power bank. It features a built-in USB port that allows you to charge your smartphones, tablets, and other USB-powered devices on the go. With a capacity of 18000mAh, this jump starter provides multiple charges for your gadgets, making it an essential companion for tech-savvy travelers.

How to Use

Using the Yesper YJS40 Battery Jump Starter is incredibly simple. Follow these steps:

1. Ensure Safety

Prioritize safety by wearing protective gloves and goggles, and make sure the jump starter is fully charged.

2. Connect the Cables

Attach the red clamp to the positive terminal of your dead battery and the black clamp to a metal surface away from the battery. This will ground the jump starter.

3. Start Your Vehicle

Once the connections are secure, turn on the jump starter and start your vehicle. The Yesper YJS40 will deliver the necessary power to get your engine running again.

4. Disconnect and Recharge

Once your vehicle starts, safely disconnect the jump starter and store it in a cool and dry place. Don’t forget to recharge it regularly to ensure it’s ready for your next emergency.


The Yesper YJS40 Battery Jump Starter is a must-have device in every car owner’s arsenal. Its powerful jump-starting capability, portability, and multi-functional features make it an invaluable tool for both everyday use and emergencies. With this reliable companion by your side, you can tackle dead batteries with ease and get back on the road in no time.