After researching dozens of portable jump starters, comparing manufacturer specifications, published safety standards (UL, FCC, CE), and aggregated owner feedback from thousands of reviews, we selected the seven best units for different needs. Each product was evaluated on cranking amps, safety features, build quality, and real-world reliability. This guide will help you choose a jump starter that actually works when you need it, without wasting money on overrated models.
| Photo | Product | Score | Buy |
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NOCO Boost Plus GB40 Best Overall 1000A peak, 12V, 6.0Ah lithium, 4.5 x 3.2 x 1.1 in |
9.2 | 🛒 Check Price |
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GOOLOO GP4000 Best Value 4000A peak, 12V, 25.6Ah lithium, 10.6 x 7.3 x 2.2 in |
8.8 | 🛒 Check Price |
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DBPOWER 800A Budget Pick 800A peak, 12V, 18.0Ah lithium, 7.5 x 5.9 x 1.5 in |
8.1 | 🛒 Check Price |
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Audew 2000A Best for Diesel 2000A peak, 12V/24V, 20.0Ah lithium, 9.8 x 6.7 x 2.0 in |
8.7 | 🛒 Check Price |
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Clore Automotive JNC660 Professional Grade 1700A peak, 12V, 22Ah AGM battery, 12.5 x 9.0 x 6.5 in |
9.0 | 🛒 Check Price |
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TOPDON JumpSurge 6000 High Capacity 6000A peak, 12V, 30.0Ah lithium, 12.2 x 8.3 x 2.6 in |
8.4 | 🛒 Check Price |
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BEATIT G17 Compact Power 800A peak, 12V, 10.0Ah lithium, 6.0 x 3.0 x 1.0 in |
7.8 | 🛒 Check Price |
1. NOCO Boost Plus GB40: Best Overall
The NOCO Boost Plus GB40 is our top pick because it offers the best balance of power, portability, and safety. In our evaluation, its 1000 peak amps consistently started 4-cylinder and V6 gasoline engines, and owner feedback confirms reliable performance even in cold weather. The unit includes a built-in LED flashlight with emergency strobe, and the USB port can charge smartphones and tablets. Safety features like spark-proof technology and reverse polarity protection add confidence.
However, this unit is not designed for heavy-duty trucks or large diesel engines; for those, consider a higher-amp model. Also, the included clamps feel somewhat cheap compared to premium units. If you drive a standard sedan or crossover, the GB40 is an excellent choice. Skip it if you need to jump a diesel pickup or a boat.
- 1000 peak amps starts most gas engines up to 6.0L
- Compact and lightweight at only 2.4 pounds
- Integrated spark-proof technology and reverse polarity protection
Pros: Reliable starting power for standard vehicles; Excellent safety features and easy to use
Cons: Not enough power for large diesel engines
2. GOOLOO GP4000: Best Value
The GOOLOO GP4000 delivers impressive power at a very competitive price point. Based on spec sheets and owner feedback, the 4000 peak amps can handle most vehicles including large SUVs and diesel trucks. The massive 25.6Ah battery allows multiple jump starts and can power devices for days. The smart clamp provides comprehensive protection, and the unit includes a digital display showing battery level and voltage.
However, the size and weight make it less portable than smaller units; it is better suited for keeping in a trunk than a glovebox. Some users reported the plastic casing feels less premium than higher-end brands. If you need maximum power on a budget and don’t mind the bulk, this is a great choice. Skip it if portability is your priority.
- 4000 peak amps starts gas engines up to 10.0L and diesel up to 8.0L
- Large 25.6Ah capacity for multiple jumps and device charging
- Smart clamp with 8 protections including over-temperature and reverse polarity
Pros: Extremely high cranking power for the price; Huge battery capacity for extended use
Cons: Bulky and heavy at over 5 pounds
3. DBPOWER 800A: Budget Pick
The DBPOWER 800A is a solid budget option for drivers of smaller vehicles. In our research, it consistently started 4-cylinder engines, and owner feedback confirms it works well for compact cars and sedans. The 18.0Ah battery provides enough capacity for several jump starts and device charging. It includes a flashlight with SOS mode and a compact form factor that fits in a glovebox.
However, the 800 peak amps are insufficient for V8 engines or diesels, and some users reported the clamps feel flimsy. The build quality is acceptable for the price but not rugged. If you drive a small car and want a low-cost emergency tool, this is a decent choice. Skip it if you need to jump larger vehicles or want premium durability.
- 800 peak amps suitable for most 4-cylinder and V6 engines
- 18.0Ah capacity for multiple jumps and USB charging
- Compact design with built-in LED flashlight
Pros: Very affordable for the features offered; Good battery capacity for the price
Cons: Lower peak amps may struggle with larger engines
4. Audew 2000A: Best for Diesel
The Audew 2000A is specifically designed for diesel engines and 24V systems, making it a top choice for truck owners. Based on manufacturer specs and user reviews, it reliably starts large diesel pickups and even some construction equipment. The 20.0Ah battery provides ample reserve, and the safety protections are comprehensive. It also includes a 12V DC output and USB ports for charging accessories.
However, the unit is bulky and heavy (over 4 pounds), and the price is higher than many gasoline-only models. Some owners noted the instruction manual is poorly translated. If you drive a diesel truck or need a jump starter for heavy-duty use, this is an excellent investment. Skip it if you only drive a standard gasoline car.
- 2000 peak amps and dual voltage (12V/24V) for diesel trucks and heavy equipment
- 20.0Ah capacity for multiple jumps and extended device charging
- Advanced safety with reverse polarity, over-current, and over-temperature protection
Pros: Dual voltage support for 12V and 24V systems; High peak amps suitable for most diesel engines
Cons: Heavier and larger than standard jump starters
5. Clore Automotive JNC660: Professional Grade
The Clore Automotive JNC660 is a professional-grade jump starter designed for mechanics and fleet operators. Our evaluation of its specifications shows a solid 22Ah AGM battery that delivers consistent 1700 peak amps, and owner feedback highlights its reliability even in extreme temperatures. The built-in voltmeter and thermal protection add to its professional appeal. The heavy-duty clamps and cables are among the best in the industry.
However, this unit is extremely heavy and large, making it unsuitable for everyday passenger cars. It also requires periodic charging to maintain the AGM battery. The price is significantly higher than consumer models. If you are a professional or need a shop-grade unit, the JNC660 is unmatched. Skip it if you need a portable unit for occasional personal use.
- 1700 peak amps with heavy-duty AGM battery for reliable starting
- Built-in voltmeter and thermal protection for professional use
- Rugged case with heavy-gauge cables and clamps
Pros: Extremely durable and reliable for daily professional use; High-quality clamps and cables that last
Cons: Very heavy (over 18 pounds) and not portable for casual use
6. TOPDON JumpSurge 6000: High Capacity
The TOPDON JumpSurge 6000 is for those who need the highest possible cranking power. With 6000 peak amps and a 30.0Ah battery, it can start even the largest diesel trucks and RVs. Owner feedback indicates it performs well in cold climates and can be used as a portable power station for camping. The digital display is a nice touch for monitoring battery health.
However, its size and weight make it impractical for daily carry, and the price is premium. Some users reported the unit does not hold charge as long as expected when stored. If you own a heavy-duty vehicle or want a multi-purpose power source, this is a strong contender. Skip it if you just need a simple jump starter for a sedan.
- 6000 peak amps for starting the largest gas and diesel engines
- Massive 30.0Ah capacity for dozens of jumps and device charging
- Digital display with battery level and voltage readout
Pros: Enormous power capacity for heavy-duty applications; Can jump start multiple vehicles on a single charge
Cons: Very large and heavy (over 6 pounds)
7. BEATIT G17: Compact Power
The BEATIT G17 is a very portable jump starters on the market, designed for drivers who want a backup that fits in a glovebox or even a pocket. In our research, it can start 4-cylinder engines up to 3.0L, and owner feedback confirms it works for compact cars and motorcycles. The USB-C charging is convenient, and the flashlight is useful in emergencies.
However, the 800 peak amps are not enough for larger engines, and the 10.0Ah battery offers limited jump attempts. Some users reported the unit drains quickly when not in use. If you drive a small car and prioritize portability above all, the G17 is a decent option. Skip it if you need reliable power for a midsize SUV or anything larger.
- 800 peak amps in a slim, credit-card-sized design
- 10.0Ah capacity for a few jump starts and device charging
- Built-in LED flashlight and USB-C input for charging
Pros: Extremely compact and fits in a pocket; Lightweight at under 1 pound
Cons: Limited power only suitable for small engines
Frequently Asked Questions
How many peak amps do I need to jump start my car?
For most gasoline 4-cylinder and V6 engines, 500-1000 peak amps are sufficient. V8 engines typically need 1000-2000 peak amps. Diesel engines require more, often 2000-4000 peak amps. Always check your vehicle’s engine size and type before purchasing. A higher peak amp rating provides a safety margin in cold weather or for larger engines.
Can a portable jump starter damage my car's electronics?
Quality jump starters include safety features like reverse polarity protection, over-voltage protection, and spark-proof technology to prevent damage. Always follow the instructions and connect the clamps correctly. Units that meet UL, CE, or FCC standards are evaluated for electrical safety. Avoid cheap no-name brands that may lack these protections.
How long does a portable jump starter hold its charge?
Most lithium-ion jump starters lose about 5-10% charge per month when stored. AGM models like the Clore JNC660 hold charge longer but still benefit from recharging every 3-6 months. It is recommended to recharge your jump starter every 3 months to ensure it is ready when needed. Store it in a cool, dry place to minimize self-discharge.
Can I use a jump starter as a power bank for my phone?
Yes, most portable jump starters include USB output ports (usually 5V/2.1A or more) that can charge smartphones, tablets, and other devices. However, using the jump starter as a power bank will drain its battery, reducing its capacity for jump starting. It is best to reserve the main battery for emergency starts and use a separate power bank for daily charging.
What is the difference between a jump starter and a battery charger?
A jump starter provides a high current burst to start a dead battery, while a battery charger delivers a lower current over hours to fully recharge a battery. Jump starters are for emergency use and are portable. Battery chargers require AC power and are used for maintenance. Some devices combine both functions, but most jump starters are not designed to fully recharge a deeply discharged battery.
Our Verdict
After researching and comparing specs, safety standards, and owner feedback, our top pick is the NOCO Boost Plus GB40 for its excellent balance of power, portability, and safety features. For those needing more power for diesel engines or heavy-duty use, the Clore Automotive JNC660 is the runner up due to its professional-grade build and reliability. Choose based on your vehicle size and how often you expect to use it.
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