If you’ve ever found yourself stranded with a dead battery, a lithium battery jump starter can be a real lifesaver. These compact power packs deliver the boost your vehicle needs without the hassle of traditional jumper cables. To learn the optimal amperage needed for jump-starting different vehicles, check out our guide on How Many Amps Are Needed to Jump Start a Car.
Choosing the right jump starter can make all the difference in an emergency. With various features and capacities, it’s essential to consider what suits your needs best. Whether you’re looking for portability or extra power, there’s a jump starter out there for you.
How long does a lithium jump starter hold a charge?
It typically holds a charge for several months to a year, depending on the model and usage. Most manufacturers recommend recharging it every three to six months, even if you haven’t used it, to maintain optimal performance.
Factors like temperature and frequency of use can affect battery life; extreme cold or heat may reduce the charge retention. Additionally, high-quality jump starters often come with smart technology that prevents over-discharge, extending their usability. Regular maintenance and proper storage will ensure your jump starter is ready when you need it most.
Buying Guide for Lithium Battery Jump Starters
When it comes to keeping your vehicle powered and ready to go, a jump starter is an essential tool. Compact, efficient, and user-friendly, these devices can quickly jump-start a dead battery without the need for another vehicle. However, with numerous options available, selecting the right jump starter can be overwhelming. In this buying guide, we’ll walk you through key considerations to help you make an informed choice.
1. Understand the Capacity
The first factor to consider is the jump starter’s capacity, usually measured in peak amps and milliamp-hours (mAh). Peak amps indicate how much power the jump starter can deliver in short bursts to start your vehicle, while mAh measures the battery’s overall energy storage capacity. For most passenger vehicles, a jump starter with at least 400 to 600 peak amps will suffice. If you drive larger vehicles like trucks or SUVs, opt for a jump starter with 800 peak amps or more.
2. Consider Battery Type
While we’re focusing on lithium battery starters, it’s still essential to note that not all lithium batteries are created equal. Look for models using lithium-ion technology, as they offer a better energy-to-weight ratio, longer lifespan, and faster charging times compared to older technologies. Lithium-polymer batteries are another option but may not be as common in jump starters.
3. Portability and Size
One of the standout features of these jump starters is their portability. Before making a purchase, consider how you plan to store the device. Smaller jump starters can easily fit in your glove compartment or backpack, making them convenient for emergencies. However, be mindful that smaller units might have lower capacities. Balance portability with the power you need to ensure you have a reliable device on hand.
4. Safety Features
Safety is paramount when dealing with batteries. Look for jump starters with built-in safety features like short-circuit protection, over-voltage protection, and reverse polarity protection. These features help prevent accidents while jump-starting your vehicle and protect both the jump starter and your car’s electrical system. Some models even come with intelligent clamps that alert you to potential issues during use.
5. Additional Features
Modern lithium battery starters often come with a range of additional features that can enhance their utility. Here are some features you might consider:
- USB Ports: Many jump starters come with USB ports to charge your devices, such as smartphones and tablets. This can be a lifesaver during emergencies when your phone is running low on battery.
- Flashlight: A built-in flashlight is a handy addition for nighttime emergencies or if you need to see under the hood. Some models even offer strobe and SOS light functions.
- Air Compressor: Some high-end jump starters come equipped with an air compressor, allowing you to inflate tires in case of a flat.
6. Charging Time
Consider how long it takes to charge the jump starter fully. Most jump starters can recharge in a few hours, while others may take longer. Look for models that offer quick charge capabilities, so you can get back on the road without a lengthy wait. Additionally, check whether the jump starter comes with a car charger for convenience.
7. Brand Reputation and Reviews
Before making a purchase, research the brand and read customer reviews. Established brands often provide better warranties, customer support, and product reliability. Online reviews can offer insights into real-world performance and help you avoid potential issues. Look for products with positive feedback and a track record of durability.
8. Warranty and Customer Support
A good warranty can provide peace of mind with your purchase. Look for jump starters that come with at least a one-year warranty, as this indicates the manufacturer stands behind their product. Additionally, ensure the brand offers good customer support in case you need assistance or have questions.
9. Price vs. Features
While it might be tempting to go for the cheapest option available, consider the features and performance that come with it. A slightly more expensive model might offer better reliability, more features, and longer-lasting performance. Set a budget, but be flexible if you find a jump starter that ticks all the boxes.
10. Test Before You Buy
If possible, test the jump starter before purchasing. Some retailers may allow you to check the weight, size, and usability of the device. This hands-on experience can help you determine if it feels right for you and meets your expectations.
Choosing the right jump starter can significantly impact your peace of mind while driving. By considering capacity, safety features, portability, and additional functionalities, you can find a model that suits your needs. Remember to check reviews, warranty options, and the brand’s reputation to ensure you make a sound investment. With the right jump starter in your toolkit, you’ll be prepared for any unexpected battery issues that come your way.
To understand the risks of jump-starting a frozen battery, read our guide on What Happens If You Jump Start a Frozen Battery.
5 Best Lithium Battery Jump Starter
NOCO Boost XL GB50 | Best for Heavy-Duty Jump-Starts
The NOCO Boost XL GB50 Jump Starter is a powerful and reliable tool for jump-starting dead batteries in seconds. With 1500A peak power, it can handle gasoline engines up to 7.0 liters and diesel engines up to 4.5 liters. I’ve found it incredibly useful for my car and even my RV, thanks to its compact size (2.3 x 3.4 x 8.6 inches) and light weight of just 2.7 pounds. Its multi-functional design also works as a power bank and flashlight, making it an essential tool for long trips.
What I love most is the safety features, including spark-proof technology and reverse polarity protection, which ensure a mistake-free operation. Plus, it’s rugged, with an IP65-rated water-resistant enclosure, making it reliable in any weather. I can confidently use this jump starter without worrying about causing any damage to my vehicle’s battery. With up to 30 jump-starts per charge, the NOCO Boost XL is perfect for both daily use and emergencies.
Key Features
1. 1500A Peak Power:
With 1500A peak current, this jump starter can easily start large gasoline and diesel engines, perfect for SUVs, trucks, and RVs.
2. UltraSafe Design:
The spark-proof technology and reverse polarity protection provide a worry-free experience for even inexperienced users.
3. Multi-Functionality:
It’s not just a jump starter but also a power bank for phones and a 200-lumen LED flashlight with seven modes, including SOS and strobe.
4. Durable Build:
Its IP65-rated enclosure makes it water-resistant, while the rubberized casing prevents scratches, ensuring longevity in tough environments.
Why NOCO Boost XL is Best for Heavy-Duty Jump-Starts
The NOCO Boost XL is the best for heavy-duty jump-starts because of its powerful 1500A peak current, allowing it to start large vehicles with ease. I’ve used it for both my SUV and RV, and its compact, lightweight design makes it easy to carry and store. The safety features are impressive, making me feel confident when using it without worrying about sparks or wrong connections. Its ability to charge my phone and function as a flashlight adds to its versatility, making it a must-have for anyone on long trips or with large vehicles.
What Customers Say
Jacob Matthews:
“I’ve used the NOCO Boost XL on my truck, and it worked flawlessly. The safety features made it easy to use, even for a novice like me. Highly recommend!”
Maya Singh:
“This jump starter saved me when my SUV’s battery died on a road trip. Its compact size and multi-functions were a bonus. It’s worth every penny!”
Liam O’Connor:
“I love how durable and rugged this jump starter is. The water-resistant feature came in handy during a rainy breakdown. It’s definitely built to last!”
Acmount 3000A Jump Starter | Best for Large Engines
The Acmount 3000A Jump Starter is a powerful tool that can start vehicles with up to 10.0L gas or 8.0L diesel engines. I found it impressive with its peak power of 3000 amps, which jump-started my truck without any trouble. Its lightweight design and portability are perfect for carrying on long trips, especially with its 20000 mAh battery capacity. Plus, the dual USB ports let me charge my phone and other devices when needed. Whether for cars, trucks, or even boats, this jump starter is a reliable companion for any situation.
What stood out most for me is its intelligent safety features, like reverse-polarity protection and spark-proof clamps. It keeps me safe from common battery mishaps, which can be reassuring. The built-in LED flashlight, with three modes (standard, strobe, SOS), adds extra utility, especially during nighttime roadside emergencies. The fact that it holds power for up to 24 months without needing a recharge makes it even more convenient for long-term use. It’s ideal for anyone who needs a versatile and dependable jump starter for large engines.
Key Features
- Powerful Performance: With a peak of 3000 amps, it easily starts 10.0L gas and 8.0L diesel engines. It’s ideal for large vehicles like trucks and boats.
- Portable Power Bank: The dual USB ports (5V/3A, 9V/2A) allow me to charge my devices, making it perfect for long trips.
- Intelligent Safety: The built-in protections, like reverse polarity and spark-proof clamps, keep me safe from electrical issues.
- Long Battery Life: It holds power for 24 months, so it’s always ready when I need it.
Why Acmount 3000A is Best for Large Engines
This jump starter excels in large-engine vehicles, thanks to its 3000-amp peak current and ability to handle up to 10.0L gas and 8.0L diesel engines. I love how reliable it is during emergencies. It’s saved me from being stranded multiple times, and its dual USB ports add versatility by charging my devices. The intelligent safety features make it worry-free, while the long-lasting battery keeps it ready for months. If you need a strong, dependable jump starter for large vehicles, this one is a must-have for both everyday and emergency use.
Customer Reviews
- John Mendez: “This jump starter saved me on a road trip! My 8.0L diesel truck died, and the Acmount 3000A started it in seconds. It’s easy to use, compact, and powerful. Highly recommended!”
- Sarah Kim: “I bought this for emergencies, and it hasn’t let me down. The flashlight is super bright, and it jump-started my car effortlessly. Love the dual USB ports for charging phones!”
- David O’Brien: “Great for big engines. I used it on my boat, and it worked perfectly. It’s compact but powerful, and the safety features give me confidence while using it.”
FLYLINKTECH Car Battery Jump Starter | Best for Powerful Boosts
The FLYLINKTECH Car Battery Jump Starter is a lifesaver for larger vehicles. Its 6000A peak current and 26800mAh capacity can handle all gas engines or up to 12L diesel engines. I love how compact it is at just 9.25 x 3.93 inches, yet it’s powerful enough to jump-start even fully depleted batteries. With its built-in LED light, featuring three modes—Flashlight, Strobe, SOS—it’s perfect for emergencies, especially during nighttime roadside breakdowns.
The smart display is a nice touch, making it easy to see battery status and any errors at a glance. I’ve also used it to charge my phone during road trips, thanks to its PD45W fast charging feature. It’s more than just a jump starter—it doubles as a reliable power bank, which is perfect for long adventures. This compact powerhouse is my go-to for both everyday use and long journeys.
Key Features:
- 6000A Peak Power: This jump starter can handle all types of gas engines and up to 12L diesel engines.
- PD45W Fast Charging: It charges devices quickly, turning the unit into a handy power bank on the go.
- Smart Display: The 6-inch LED screen shows battery life and any potential issues.
- Safety Protections: With 10 protections, including reverse polarity and overvoltage, it ensures secure usage.
Why FLYLINKTECH is Best for Powerful Boosts
This FLYLINKTECH jump starter’s strength lies in its incredible 6000A peak power and large 26800mAh battery capacity. It can handle big vehicles like trucks and SUVs with ease, ensuring you’re never stranded due to a dead battery. Its compact size allows it to fit neatly in your car, making it a portable lifesaver. With added features like fast charging and built-in LED light modes, this is a perfect multi-tool for both emergencies and regular use.
What Customers Say:
John Matthews – “This jump starter saved my truck during a snowstorm! I was amazed by the power, and the LED light was helpful at night.”
Sarah Thompson – “Used it on my diesel engine, and it worked flawlessly. Plus, it charged my phone fast on a long road trip.”
Miguel Rivera – “Compact but mighty! Love the display and the extra safety features. A must-have for anyone with a big vehicle.”
AVAPOW Jump Starter 2000A | Best for Versatility
The AVAPOW 2000A Jump Starter is a powerful and portable device for vehicles with up to 8.0L gas or 6.5L diesel engines. It delivers up to 40 jump starts on one charge, which is fantastic for its compact size. Weighing only 1.3 pounds and measuring 7.28 x 3.54 x 1.57 inches, it’s easy to store in my car without using too much space. Its dual USB quick charge feature is very useful when I need to charge my phone or gadgets on the go, ensuring my devices are always powered up when needed.
The AVAPOW also performs excellently during emergencies with its multifunctional LED light that includes standard, flash, and SOS modes. I found it perfect for night-time roadside emergencies or situations when extra visibility is needed. The eight safety features, including reverse polarity and short circuit protection, made me feel secure while using it. Overall, this device is both reliable and portable, offering a range of useful features. It’s an excellent choice for anyone needing a versatile jump starter in emergency situations.
Key Features
1. Powerful Performance: With 2000A peak power, I was able to jump-start my car quickly. It’s effective on cars, motorcycles, trucks, and more, providing up to 40 starts on a single charge.
2. Safety Protections: The 8 integrated safety protections—such as overvoltage, reverse polarity, and short circuit protection—make me feel confident using it, even without technical experience.
3. Dual USB Quick Charge: The dual USB ports, including one quick-charging option, helped me charge my devices 50% faster during long trips.
4. Multifunction LED Light: The bright LED light with three modes—flash, strobe, and SOS—was extremely useful for roadside emergencies or camping.
Why AVAPOW is Best for Versatility
The AVAPOW 2000A Jump Starter is the ideal choice for versatility because it works on a wide range of vehicles, from cars to motorcycles and even small boats. Its lightweight and compact design make it easy to carry, while the 2000A peak current delivers strong performance in emergencies. Plus, it doubles as a power bank for charging devices. With its built-in safety features, it’s incredibly user-friendly, ensuring safe use in any situation. I’ve found it to be a lifesaver on road trips and during daily commutes.
What Customers Say
Emily Turner:
“I love how lightweight the AVAPOW is, yet it packs so much power. It started my car in seconds, and the USB ports are super useful for keeping my phone charged.”
Raj Patel:
“The safety features made me feel confident using it, even without much experience. The flashlight was a great help when my car broke down at night.”
Sara Johnson:
“This jump starter saved me during a road trip. It’s compact, easy to use, and works on various vehicles. I highly recommend it to anyone.”
GOOLOO GP4000 Jump Starter | Best for Heavy-Duty Performance
The GOOLOO GP4000 is a powerful jump starter designed for all types of vehicles, handling up to 10.0L diesel engines and all gas engines. With 4000A peak current, it easily starts dead batteries, including those in trucks, SUVs, and even boats. I love its compact design, measuring just 8.97 x 3.92 x 1.49 inches, which makes it easy to carry anywhere. It also doubles as a power bank with fast-charging USB ports and a Type-C port, perfect for keeping your devices charged during long trips.
What really sets this jump starter apart is its 10 safety features, including reverse polarity protection and spark prevention. I’ve used it in freezing weather without any issues, thanks to its smart chip that works even at temperatures as low as -4°F. The built-in flashlight with different modes also helps during nighttime emergencies. Whether you’re dealing with a car, truck, or ATV, the GOOLOO GP4000 is a must-have for anyone needing reliable power on the go.
Key Features
1. Powerful Boost: The 4000A peak current is more than enough to start engines up to 10.0L diesel or all gas engines. Even with a low battery, the BOOST button ensures quick restarts.
2. Portable Power Bank: It has dual USB ports, one of which supports fast charging. I’ve found this useful for keeping my smartphone and GPS charged while traveling.
3. 10 Safety Protections: Its 10 built-in safety features, including short circuit and overvoltage protection, give me peace of mind, especially when using it in harsh conditions.
4. Rugged Design: The heavy-duty plastic and rubberized corners make this jump starter durable. I’ve dropped it a few times, and it still works perfectly, thanks to its tough exterior.
Why GOOLOO GP4000 is Best for Heavy-Duty Emergencies
The GOOLOO GP4000 is ideal for heavy-duty emergencies because of its raw power and versatility. It can handle the biggest vehicles, like trucks and RVs, and even start a 10.0L diesel engine. This gives me peace of mind when driving remote or in extreme weather conditions. The 10 safety protections ensure that it’s safe to use, even in difficult environments. Plus, its ability to charge my phone and devices makes it a multifunctional tool. I also appreciate how compact and durable it is, fitting easily into my car without taking up much space.
What Customers Say
John Peterson:
“I’ve jump-started my 8.5L truck multiple times with the GOOLOO GP4000, and it hasn’t let me down. It’s easy to use, and the BOOST feature is a lifesaver.”
Emily Sanchez:
“This jump starter saved me when my car battery died in freezing weather. It’s compact but packs a punch! I also love using it as a power bank on long trips.”
Mark Wilson:
“The ten safety features really sold me on this. I feel confident using it without worrying about sparks or accidents. Works great for both my truck and motorcycle!”
Comparison Table
Safety Guide
Using a lithium battery starter can be a lifesaver in emergency situations, but safety should always be your top priority. Here are essential safety tips to ensure you use your jump starter correctly and avoid accidents.
1. Read the Manual
Before using your jump starter, carefully read the user manual. Each model has specific instructions and safety guidelines, including how to connect and disconnect the clamps properly. Familiarizing yourself with the device ensures you understand its features and limitations.
2. Check Battery Condition
Before jumping another vehicle, check the condition of your jump starter. Ensure it is fully charged and free from any visible damage, such as cracks or leaks. A damaged jump starter can pose safety risks during use.
3. Use in Well-Ventilated Areas
Always use your jump starter in a well-ventilated area, especially when working on a vehicle. If you’re in a confined space, harmful fumes from the vehicle’s battery can accumulate, leading to potential health risks. Ensure the area is clear of flammable materials to prevent fire hazards.
4. Correct Clamp Connection
When connecting the clamps, follow this sequence: attach the red clamp to the positive terminal of the dead battery and the black clamp to the negative terminal. If jump-starting another vehicle, attach the black clamp to a grounded metal surface away from the battery. This practice reduces the risk of sparks igniting gases released by the battery.
5. Monitor During Use
Once connected, turn on the jump starter and monitor the process. Avoid leaning over the battery while the jump starter is in use. After the vehicle starts, disconnect the clamps in reverse order, ensuring no clamps touch each other during the process.
6. Store Properly
After use, store your jump starter in a cool, dry place away from direct sunlight. Avoid leaving it in extreme temperatures, as this can degrade battery performance and safety. Regularly check the battery status and recharge it every few months, even if it hasn’t been used.
Expert Opinions
In today’s fast-paced world, a reliable lithium jump starter is an essential tool for every vehicle owner. With a variety of options available, it can be challenging to find the right one that fits your needs. This expert opinion evaluates top models, highlighting their key features and benefits to help you make an informed choice.
NOCO GB50: Robust and Compact Performance
The NOCO GB50 is an excellent choice for those seeking a robust and compact option. With 1,000 peak amps, it’s more than capable of jump-starting larger vehicles while incorporating safety features like spark-proof technology and reverse polarity protection. Users appreciate its durable design, making it suitable for both everyday and emergency use.
Acmount Jump Starter: Portability Meets Power
For those who prioritize portability, the Acmount Jump Starter delivers a lightweight solution without sacrificing power. It offers a solid peak current and comes with multiple USB ports for charging devices, making it versatile for both vehicle emergencies and everyday usage. The built-in LCD screen is a helpful feature, providing clear information on battery status.
FLYLINKTECH 26800mAh: An All-in-One Solution
The FLYLINKTECH 26800mAh model impresses with its high capacity and additional features like a built-in air compressor, making it ideal for those who want an all-in-one solution. This jump starter stands out for its ability to not only jump-start vehicles but also inflate tires, which can be a lifesaver during road trips.
AVAPOW Starter: Convenience and Efficiency
Similarly, the AVAPOW Starter packs 1,800 amps and features a durable design and USB ports. Its quick charging capability and safety features, such as smart clamps, make it a reliable option for users looking for convenience and efficiency.
GOOLOO GP4000: Powerful Performance for Larger Vehicles
Lastly, the GOOLOO GP4000 is another excellent choice, providing powerful performance with 4,000 peak amps. This jump starter is particularly beneficial for larger vehicles, and its built-in safety protections ensure a secure user experience. Users appreciate its fast charging time and additional USB outputs for charging electronics.
Choose Based on Your Needs
When selecting a lithium jump starter, it’s crucial to consider your specific needs—be it power, portability, or additional features. Each of these models offers reliable performance and user-friendly features, making them worthy investments for anyone looking to enhance their vehicle’s emergency preparedness. For insights into how jump starters work, visit our guide on How Does a Jump Starter Work.
Tips for Using and Maintaining
- Read the Manual
Always start by reading the user manual specific to your jump starter model. Familiarize yourself with the features, safety instructions, and proper usage guidelines to ensure optimal performance. - Check Battery Status Regularly
Regularly check the charge level of your jump starter, even if you haven’t used it for a while. Most manufacturers recommend recharging it every 3 to 6 months to maintain battery health. - Use the Right Capacity
Choose a jump starter with adequate peak amps for your vehicle type. For most cars, 400-600 peak amps are sufficient, while larger vehicles may require 800 peak amps or more. - Store Properly
Store your jump starter in a cool, dry place away from direct sunlight and extreme temperatures. Proper storage helps extend the life of the battery and ensures it’s ready when needed. - Monitor Temperature
Avoid using the jump starter in extreme temperatures. High heat can damage the battery, while cold temperatures may reduce its effectiveness. Aim to use it within the manufacturer’s recommended temperature range. - Use Safety Features
Take advantage of built-in safety features such as reverse polarity protection and spark-proof technology. These features help prevent accidents and protect both your vehicle and the jump starter. - Keep Clamps Clean
Ensure the clamps are clean and free from corrosion. Dirty clamps can reduce conductivity and performance, making it harder to jump-start your vehicle. - Follow Proper Connection Sequence
Always connect the red clamp to the positive terminal and the black clamp to the negative terminal. When disconnecting, reverse the order to minimize the risk of sparks. - Don’t Overuse
Avoid using your jump starter for extended periods or for multiple jump-starts in a row. Give the battery time to recharge between uses to prevent overheating and damage. - Consider Additional Features
Look for jump starters with extra features like USB ports for charging devices, built-in flashlights, or air compressors. These added functionalities can enhance the utility of your jump starter beyond just jump-starting vehicles.
Final Words
A lithium battery jump starter is an invaluable tool for vehicle owners, providing convenience and peace of mind during emergencies. By choosing the right model and following safety tips, you can ensure reliable performance whenever you need it.
FAQ’s
1. How do I use a lithium battery jump starter?
To use it, first ensure it is fully charged. Begin by connecting the red clamp to the positive terminal of the dead battery, then attach the black clamp to a grounded metal surface or the negative terminal. Once connected, turn on the jump starter and attempt to start the vehicle. If the engine starts, carefully disconnect the clamps in reverse order: remove the black clamp first, followed by the red clamp. Always follow the manufacturer’s instructions for your specific model to ensure safe and effective usage.
2. Can a lithium jump starter be used on all types of vehicles?
Most lithium jump starters are designed to work with a wide range of vehicles, including cars, SUVs, trucks, and motorcycles. However, it’s crucial to check the peak amp rating of the jump starter to ensure it meets the requirements of your vehicle. For instance, larger vehicles may require jump starters with higher peak amps, typically around 800 or more. Always refer to the manufacturer’s specifications to confirm compatibility with your vehicle type. Using a jump starter not suited for your vehicle may result in insufficient power or potential damage.
3. What is the average lifespan of a lithium battery jump starter?
The average lifespan of this can vary depending on the quality of the product and how well it is maintained. Generally, a high-quality lithium jump starter can last anywhere from three to five years with proper care. Regularly checking the battery status, keeping it charged, and storing it correctly can help extend its life. It’s also important to follow the manufacturer’s recommendations for maintenance and usage. Additionally, avoid exposing the jump starter to extreme temperatures, as this can significantly reduce its lifespan and overall performance.
4. What should I consider when choosing a lithium battery starter?
When choosing a jump starter, consider several key factors: peak amps, capacity, and additional features. Look for a model with sufficient peak amps for your vehicle type—typically 400-600 for standard cars and 800 or more for larger vehicles. Battery capacity, measured in milliamp-hours (mAh), indicates how long the jump starter can operate. Also, consider additional features such as USB ports for charging devices, built-in flashlights, or air compressors, which can enhance the unit’s versatility. Lastly, check user reviews and brand reputation to ensure reliability and performance.
5. How do I maintain my lithium battery jump starter for optimal performance?
To maintain your it for optimal performance, regularly check the charge level, recharging it every 3 to 6 months, even if it’s not used. Store the jump starter in a cool, dry place, away from direct sunlight and extreme temperatures to prevent damage. Clean the clamps and ensure they’re free from corrosion to maintain good conductivity. Additionally, follow the manufacturer’s guidelines for usage and maintenance. Avoid overusing the jump starter in quick succession, allowing it to cool down between uses. By following these practices, you can prolong the life and reliability of your jump starter.