Lithium battery jump starter is widely used by drivers due to its convenience to jumpstart car battery if car can't start on the road, and most of wholesaler, distributor, sellers like to sell car jump starter. However, lithium battery inside jump starter is easy to get fire and explosion. This problem make people worried about their life and property. So more and more businessmen draw back to portable jump starter market. Most people want to know the answer. Here are some factors to reveal it.

Why Lithium Battery Get Fire or Even Explosion? 

1. Bad Design
there is not enough space for anode and catnode, once they get together, The chemicals inside the battery begin to heat up. or if the plastic insulator fail causing anode and catnode touched,and short circuit.

2. Manufacturing Defects
Quality control isn't kept tight enough,especially battery, if badly made or poor insulator, the jump starter will short or heat up inside.

3. High Temperature
Leave jump starter in the car or the building exploring to the sun,especially in summer, in this condition, the inside will get hot, the jump starter can’t bear more than 140°F, otherwise it will be swollen, or ignited nearly the items.

4. Improper operation
A Charged Battery pack is used to jump start a vehicle and then accidentally left connected with the motor running and alternator charging normally. car jumper should be disconnected from car battery in 30 seconds after jumpstarting vehicles.

Use battery pack to jump start vehicles many times in a certain minutes, it will instantly draw high current and heat it up. Normally  it is suggest to jump start 4 time in 2 minutes. 

What Temperature Should a Jump Starter Be Kept At?

Whether you're planning to jumpstart a car in the dead of winter or rely on backup power without jumpstarting, temperature matters more than you think. A jump starter is, after all, a battery-powered device—and batteries hate extreme conditions.
Cold weather can reduce the power output, while excessive heat can do permanent damage. If stored in places that exceed 60°C (140°F)—like a hot trunk in summer—lithium cells inside the jump starter may degrade faster, losing capacity over time.
To keep your jump starter reliable and ready when you need it most, aim to store it in a cool, dry place—ideally between 10°C to 25°C (50°F to 77°F). This temperature range helps maintain battery health and ensures it's ready to go whether you're jumpstarting a vehicle or simply using its USB ports to power up your devices.

What Makes a Good Lithium Battery for Jump Starter?

When it comes to choosing the right jump starter kit to jumpstart a car, the quality of the lithium battery makes all the difference. Here's what sets a good one apart:

1. Lithium vs. Lead-Acid: Know the Difference

Traditional lead-acid batteries are bulky and lose efficiency over time. In contrast, lithium batteries are lightweight, compact, and deliver consistent high power.Pound for pound, lithium delivers extreme energy output at a fraction of the size.

2. Built-in BMS Protection for Emergency Starting

A high-quality lithium jump starter should include Battery Management System (BMS) protection. This ensures safe charging, discharging, short-circuit protection, and temperature control—critical for both performance and safety.The smart technology is the AI software protection,which enhances safety and performance through features like reverse polarity protection, spark-proof connections, and intelligent charging systems.

3. Voltage Matters: 12volt vs. 24volt

12v jump starters are perfect for everyday vehicles like cars and SUVs.24v jump starters are designed for RVs, heavy duty trucks, marine engines, and fleet vehicles, which demand higher cranking power.

4. The Right Boost Jumper Kit for the Right Job

Everyone encounters difficulties when exploring the world, often encountering adverse situations. As an outdoor enthusiast, a 12v battery booster is essential. It's compact, reliable, and frequently includes USB charging ports and flashlights—perfect for off-grid needs.

How To Jump Start a Car With a Battery Booster?

CARKU is a global leader in auto jump starter for car, motocycle, SUV , truck, lawn mower. Over 50 engineers in R&D team develop new products with every year to enter into market to help clients gain great competition against their competitors.  The top important principle is to keep it stable and safe when users use lithium-ion battery portable jump starter to restart their vehicles or recharge other USB devices, 12V automotive devices, or laptops. Now CARKU is well recognized by the world due to  stable quality and high end design.

Frequently Asked Questions

1.Are lithium batteries good for starting cars?
Yes, lithium batteries can be used to start cars, and they offer several advantages over traditional lead-acid batteries, including lighter weight, longer lifespan, and faster charging.

2.Do lithium ion batteries go bad?

They can be more expensive.But lithium-ion batteries can degrade over time, but they don’t “go bad”quickly if properly maintained.In fact, compared to traditional lead-acid batteries, lithium-ion batteries last much longer—often up to 5X the cycle life.

3.Will a jump start fix a dead battery?
A jump start can get your car running if the battery is dead, but it doesn't “fix” the battery itself.  It simply provides enough power to start the engine by drawing current from an external power source like a jump starter or another vehicle.