HULKMAN Alpha85S: The Best Overall Jump Pack
OVERALL SCORE: 77
- Power Performance 9.0
- Battery Storage 7.0
- Craftsmanship & Durability 7.0
- Ease of Use 8.0
- Versatility 6.0
REASONS TO BUY
- Clear digital battery display
- Exceptional power output for jump-starting
- Long-lasting battery life
- Includes a variety of accessories and adapters
REASONS TO AVOID
- Does not include a carrying case
- Larger size compared to other lithium-ion jump packs
- Higher price point
For those who prioritize top-tier performance and a comprehensive set of features within a sleek design, the HULKMAN Alpha85S stands out as our top recommendation for the Best Jump Pack. Our lead tester highlighted its superior power delivery, stating, “During our power assessment, this model produced a higher voltage than any other jump starter we reviewed.” Beyond its impressive power, the Alpha85S also boasts exceptional battery longevity and rapid charging capabilities. The user-friendly design features a prominent digital display that accurately shows the battery percentage, offering more precision than traditional LED indicators. A built-in, bright flashlight and a shape that is convenient for storage under seats or in door panels further enhance its practicality. The Alpha85S offers versatile charging options, accepting power via USB or the included 12-volt car outlet power cord, and can, in turn, charge USB and 12-volt devices.
SPECIFICATIONS
| Feature | Value |
|---|---|
| Peak Amps | 2000 |
| Starting Amps | 500 |
| Watt Hours | 74 |
| Number of Jump Starts | 60 |
| Number of Cell Phone Charges | 20 |
Despite its numerous advantages, the HULKMAN Alpha85S, surprisingly, lacks a simple case or pouch for organizing its cords and adapters. It is also noticeably bulkier than many other lithium-ion jump packs of similar type. One tester commented, “It is significantly smaller than any sealed lead acid battery model, but other lithium-ion jump starters are compact enough to fit in a center console or a glove box.” The Alpha85S also comes with a higher price tag. However, despite these minor drawbacks, the Alpha85S remains the ultimate choice for users seeking exceptional performance and cutting-edge technology in a jump pack. For a more budget-friendly and compact alternative, consider the NOCO Boost Plus GB40. While it might not match the raw power of the Hulkman, it still offers robust lithium-ion performance and a convenient ‘Boost mode’ for immediate vehicle starts.
The HULKMAN Alpha85S provides our favorite complete kit in the lithium-ion best jump pack category.
Credit: Ross Patton
GOOLOO GP2000: Best Value Jump Pack
OVERALL SCORE: 63
- Power Performance 6.0
- Battery Storage 7.0
- Craftsmanship & Durability 6.0
- Ease of Use 6.0
- Versatility 5.0
REASONS TO BUY
- High-capacity battery for extended charge and multiple uses
- Impressive 2000 peak amp rating
- Generous 73 watt-hour battery
- Versatile power options for accessories via USB or 12V DC
REASONS TO AVOID
- May struggle with larger vehicle engines
- Comes with a somewhat bulky carrying case
- 12V AC car adapter is sold separately
If your primary need is a powerful portable power bank, with jump-starting as a secondary, less frequent requirement, the GOOLOO GP2000 is a compelling option as a best value jump pack. Its high-capacity lithium-ion battery and numerous charging ports are particularly impressive. This model features a 37Wh lithium-ion battery capable of delivering up to 2000 peak amps for jump-starting. One tester noted, “It wasn’t as powerful for boosting larger batteries on bigger trucks, but had plenty of juice to handle eight consecutive boosts on a 2.5-liter engine before needing another charge.” The GP2000 truly shines as a portable power source for electronics. In our tests, the 5V USB port provided up to 15 full iPhone charges on a single charge of the jump pack. The inclusion of a USB-C port for input/output further enhances its charging flexibility.
SPECIFICATIONS
| Feature | Value |
|---|---|
| Peak Amps | 1,200 |
| Starting Amps | 500 |
| Watt Hours | 37 |
| Number of Jump Starts | 8 |
| Number of Cell Phone Charges | 3 |
While excellent for powering devices on the go, the GOOLOO GP2000’s performance as a jump starter was somewhat less impressive. Our lead tester observed, “it is fully capable of bringing mid-size batteries back to life but doesn’t quite have the gusto to manage larger engines and higher cranking amps.” However, the 37Wh battery’s storage capacity allows it to hold a charge for extended periods, making it reliable for powering electronics whenever needed. The GOOLOO GP2000 excels as a versatile power source and offers effective jump-starting capabilities for most vehicles, providing an outstanding price-to-performance ratio, making it a strong contender for the best value jump pack.
We utilized a multimeter to accurately measure the output power of these jump packs. The GOOLOO demonstrates its ability to charge USB devices akin to a standard 5V 2A wall charger.
Credit: Rob Woodworth
NOCO Boost Plus GB40: Best Compact Jump Pack
OVERALL SCORE: 67
- Power Performance 7.0
- Battery Storage 6.0
- Craftsmanship & Durability 8.0
- Ease of Use 6.0
- Versatility 5.0
REASONS TO BUY
- Extremely compact and portable design
- Lightweight for easy handling and storage
- Features a convenient ‘Boost Mode’ for quick starts
- IP65 waterproof rating for durability in various conditions
REASONS TO AVOID
- Does not include a wall plug for charging
- Less suitable for jump-starting larger engines
- Battery life is adequate but not exceptional
- Limited overall features and capabilities
If space is a premium in your vehicle or you prefer a jump starter that is discreet and doesn’t take up much room, the NOCO Boost Plus GB40 is our top pick for the best compact jump pack. A team member remarked, “This powerful little device is tiny compared to much of the competition, yet it has proven to be able to start every vehicle we’ve tested it with.” Unlike many jump starters that require a waiting period before attempting to start the vehicle, the GB40’s ‘Boost Mode’ provides a rapid surge of power, often enabling immediate starts. For users who are tough on their equipment, this model boasts an IP65 waterproof rating. One of our testers humorously noted, “Although you can’t exactly go swimming with it, a little bit of rainwater and dust is no problem.“
SPECIFICATIONS
| Feature | Value |
|---|---|
| Peak Amps | 1000 |
| Starting Amps | 500 |
| Watt Hours | 24 |
| Number of Jump Starts | 10 |
| Number of Cell Phone Charges | 4 |
In terms of versatility, the NOCO Boost Plus GB40 is more limited. It effectively jump-starts car batteries and charges USB devices, but its feature set is basic beyond these functions. Charging is solely via USB cable, and a wall adapter is not included for indoor charging. With a 1000 peak amp rating, the GB40 is not the ideal choice for larger engines. “But the smaller size equates to a shorter battery life,” our lead tester pointed out, “so if you go with this option, be sure to keep up on your intermittent charging.” Despite these limitations, we remain highly impressed by the NOCO GB40’s overall performance, particularly considering its remarkably compact size. If budget allows, the Hulkman Alpha85S offers a significant upgrade with a more powerful battery and a broader range of accessories in the portable jump pack category.
If you value the convenience of a reliable jump starter in your vehicle without it being noticeable, the GB40 is the best compact jump pack for you.
Credit: Ross Patton
Dewalt DXAEJ14: Best Jump Pack for Home or Shop Use
OVERALL SCORE: 60
- Power Performance 7.0
- Battery Storage 5.0
- Craftsmanship & Durability 6.0
- Ease of Use 5.0
- Versatility 8.0
REASONS TO BUY
- Extremely robust and durable construction for demanding environments
- Higher peak amp rating than average for powerful jump-starting
- Integrated 120 PSI air compressor with precise digital settings
- Convenient charging via 12V DC or 120 AC power sources
- Features dual USB ports and a 12V 10A outlet for versatile power needs
REASONS TO AVOID
- Heavy and less portable compared to lithium-ion models
- Limited storage space for cables and accessories
- Not designed for consecutive jump starts without recharging
- Lower watt-hour battery capacity
For an all-encompassing power solution ideal for home garages or professional shops, the Dewalt DXAEJ14 provides a wide range of functionalities beyond just jump-starting. “Need to air up your tires? Check your alternator? Charge your cell phone?” our lead tester inquired, appreciating the Dewalt’s utility even beyond its jump-starting capabilities. The 120 PSI air compressor is a standout feature, with an LCD screen for setting the desired PSI for precise tire inflation. In addition to delivering 1400 peak amps, it can also power accessories through dual USB ports and a 12V DC charging port. Although not as light and portable as lithium-ion jump packs, this unit can effectively jump-start larger engines while still having enough power to charge devices or inflate tires, making it the best jump pack for home or shop use.
SPECIFICATIONS
| Feature | Value |
|---|---|
| Peak Amps | 1,400 |
| Starting Amps | 700 |
| Watt Hours | 21 |
| Number of Jump Starts | 2 |
| Number of Cell Phone Charges | 4 |
A potential drawback is that, unlike lithium-ion models capable of multiple jump starts per charge, the Dewalt DXAEJ14, being a sealed lead-acid (SLA) battery type, requires recharging after each jump start. Regular charging is crucial for SLA batteries; Dewalt recommends monthly top-offs. However, the Dewalt DXAEJ14 outperforms other SLA jump starters with its larger 21 amp-hour battery. “That power performance, coupled with its versatility (and its 35-pound weight), makes it a favorite for around-the-house and shop use,” one tester noted. For those seeking an SLA jump starter on a budget, the Stanley J5C09 1000 Peak Amp presents a viable alternative, offering similar features like a USB port and 120 psi air compressor at a more affordable price.
The Dewalt DXAEJ14 is our top selection for a sealed-acid battery model that includes a built-in compressor, adding to its versatility as a jump pack.
Credit: Rob Woodworth
Product Comparison
Jump packs come in various sizes; many top models, such as the NOCO Boost HD, are surprisingly compact, demonstrating the range of options available.
Credit: Eric Bissell
Our Jump Pack Testing Methodology
We evaluated jump packs with peak amp ratings from 1000 to 2000 amps, acknowledging that higher output models exist from various brands. Our tests rigorously assessed performance limits, including jump-starting a range of vehicles from a 650cc motorcycle to a 6.7L V8 diesel and a 454 horsepower inboard boat engine. We measured voltage and current during jump starts and, when feasible, bypassed vehicle batteries to determine the number of cold starts each jump pack could achieve. Our comprehensive approach included both lithium-ion and sealed lead-acid battery types, applying identical testing metrics and scoring to each.
Our jump pack testing is based on five key rating metrics:
- Power Performance (30% of overall score): Evaluating the jump-starting capability and power output.
- Battery Storage (30% weighting): Assessing battery capacity, longevity, and recharge efficiency.
- Craftsmanship & Durability (20% weighting): Examining build quality, robustness, and weather resistance.
- Ease of Use (15% weighting): Analyzing user-friendliness, interface intuitiveness, and setup simplicity.
- Versatility (15% weighting): Assessing additional features like USB charging, air compressors, and lights.
Many jump pack models also feature integrated flashlights, a highly practical addition for roadside emergencies and low-light conditions.
The HULKMAN Alpha85S jump pack demonstrates its power by successfully running a 12-volt compressor, showcasing its versatile energy output.
Jump packs offer a significantly more user-friendly alternative to traditional jumper cables, simplifying the process of jump-starting a vehicle.
Why Trust Our Jump Pack Reviews
Ross Patton, a seasoned team member and our primary tester, brings extensive experience in off-roading, overlanding, and battery-powered technology to our jump pack reviews. With a background in Environmental Science from the University of Nevada, Reno, and a passion for technical products and outdoor adventures, Ross is ideally suited to lead our testing.
Rob Woodworth, another key tester, offers a deep understanding of 12V systems and batteries, stemming from his experience operating and maintaining various engine types. As a Coast Guard Certified Captain, Rob routinely manages deep-cycle marine batteries for heavy equipment and possesses practical knowledge of battery performance enhanced by his work with off-grid solar power systems. The combined expertise of Ross and Rob ensures our jump pack reviews are thorough, reliable, and based on in-depth knowledge and testing.
Our testers meticulously examined each jump pack contender, employing voltmeters and load testers, even measuring the current output of USB charging ports for comprehensive analysis.
Our testing process goes beyond simple usage; we subject each jump pack to a rigorous series of tests using professional-grade electronic voltage meters and load testers to quantify performance.
We conduct detailed comparisons of components like adaptor clips and various other elements during our in-depth jump pack review process.
Selecting the Best Jump Pack: Key Considerations
A high-quality jump pack is an invaluable tool when faced with a dead car battery. While many options appear similar, our rigorous testing has revealed critical distinctions that differentiate superior models from mediocre ones. Before making a purchase, consider these essential factors to guide your decision in choosing the best jump pack for your needs.
Sealed Lead Acid vs. Lithium-Ion Jump Packs
Both sealed lead-acid (SLA) and lithium-ion (LI) jump packs offer unique advantages, and the best type for you depends on your specific requirements. The most noticeable difference is weight; SLA batteries are significantly heavier and larger than LI counterparts. LI batteries generally provide more power relative to their weight and store more watt-hours of energy. SLA batteries are cost-effective, durable, and dependable if properly maintained, requiring recharging after each jump start, whereas LI jump packs can perform multiple jumps on a single charge. SLA batteries also lose charge over time more quickly than LI packs, which retain power for longer durations.
Distinguishing between them is straightforward: LI batteries are typically slim and modern-looking, while SLA options are bulkier and resemble traditional charging packs. Our comparison chart specifications also highlight weight differences, with LI packs generally under five pounds and SLA packs exceeding 15 pounds.
Frequency of Jump-Starting Needs
Consider how often you anticipate needing to use a jump pack, as models vary in power capacity. While manufacturers may list milliamp-hours (mAh) or amp-hours (Ah), watt-hours provide a more useful measure of battery storage potential across different voltages. Our tests focus on watt-hours to accurately reflect the number of jump starts each pack can deliver before needing a recharge. If frequent jump-starting is expected, prioritize models with higher watt-hour ratings. Our Battery Storage metric in the comparison chart details each starter’s capacity.
Vehicle Battery Size and Engine Type
While most drivers will use a jump pack for standard passenger vehicles, some may need to jump-start larger engines. Jump pack capability is often indicated by ‘peak amps,’ reflecting maximum output. This rating is a useful starting point for comparing power, but actual performance can vary under different electrical loads. Our Power Performance metric ranks models based on their demonstrated output capability, with higher-ranked products being better suited for larger engines.
Jump Pack Storage Location and Durability Requirements
Size and weight are key differentiators between SLA and LI jump packs, with LI options being lighter and more compact. However, consider how and where you’ll store your jump pack. For glove compartment storage, compact LI models are ideal. For work trucks or shop environments where durability is crucial, rugged models are more appropriate. Our Craftsmanship & Durability metric helps identify models designed for demanding conditions, considering waterproof ratings and cable length, especially for marine applications.
The NOCO Boost HD GB70 jump pack prioritizes pure durability and reliability over superfluous features, making it ideal for demanding environments.
Credit: Eric Bissell
Analysis of Jump Pack Performance and Test Results
We conducted a direct comparison of popular jump pack models, testing both sealed lead-acid and lithium-ion types to thoroughly understand their functional capabilities. Our evaluation included jump-starting speed and an examination of features like USB power ports, AC adapters, and air compressors.
Best Value Jump Pack Options
The ideal jump pack investment depends on your vehicle type and lifestyle. For compact trucks, SUVs, or smaller vehicles, where jump-starting and phone charging are primary needs, the NOCO Boost Plus GB40 is an excellent, cost-effective choice. For users needing a device for frequent use, potentially with 12-volt power capabilities and a compressor, the Dewalt DXAEJ14 is highly recommended. While lacking a compressor, the HULKMAN Alpha85S is a worthwhile investment due to its exceptional performance and features, including 12-volt compressor compatibility. For an affordable yet effective jump starter, the GOOLOO GP2000 is a standout option, offering great value as a best value jump pack.
The GOOLOO GP2000 jump pack excels with exceptional battery performance, making it very convenient for charging electronics and showcasing its versatility.
Credit: Rob Woodworth
Power Performance Evaluation
In our power performance assessment, we measured each model’s energy output when jump-starting a 12V battery, focusing on amperage and voltage delivery under load.
The HULKMAN Alpha85S topped the category, exhibiting the highest amperage output and significantly higher voltage in Force Start mode compared to competitors. It is the premier choice for quickly starting larger engines, proving itself as a top performing best jump pack.
The HULKMAN Alpha85S jump pack’s voltage output was unmatched during our performance evaluations, demonstrating its superior power delivery.
Credit: Ross Patton
The NOCO Boost HD GB70 and NOCO Boost Plus GB40 were top-rated lithium-ion models in power performance, both exceeding 1000A peak amps, suitable for engines up to seven liters. These jump packs consistently delivered adequate power for various 12V batteries, leveraging lithium-ion technology for rapid energy pulses.
The NOCO Boost HD GB70 jump pack features clamps large enough to securely attach to larger battery terminals, ensuring a reliable connection for jump-starting.
Credit: Eric Bissell
Conversely, the Dewalt DXAEJ14, Clore Automotive JNC660, and Stanley J5C09 (SLA models) delivered a constant current. While SLA models require recharging after each use and offer fewer jumps per charge compared to lithium-ion, they effectively jump-start larger diesel and marine batteries. Among SLA types, the Stanley J5C09 showed slightly lower current output under load in our tests.
The NOCO Boost Plus GB40 jump pack maintained a voltage reading near the 12-volt mark during our power performance assessments, indicating efficient energy delivery.
Credit: Ross Patton
Battery Storage Capacity
Our battery storage evaluation considered manufacturer watt-hour claims, measured wattage during charging and jump-starting, and timed battery life powering a 12-volt compressor.
The HULKMAN Alpha85S excelled, outlasting all competitors in battery longevity tests. For users prioritizing extended battery life, it is the clear best jump pack choice. The GOOLOO 2000 also demonstrated commendable battery storage with an impressive 80Wh capacity.
During our battery longevity tests, the Alpha85S jump pack significantly outperformed the competition, proving its superior battery storage capabilities.
Credit: Ross Patton
The NOCO Boost HD GB70 provided comparable or more jump starts than competitors despite a slightly lower 54Wh rating compared to other lithium-ion packs.
We successfully charged the NOCO booster partially using the USB power ports on the Dewalt DXAEJ14 jump pack, showcasing the interoperability and charging versatility of these devices.
Credit: Rob Woodworth
For users needing only one or two emergency jump starts per charge, the NOCO Boost Plus GB40 is sufficient. While it lacks the extended battery life of larger models and the amperage for large diesel trucks, it meets the needs of most users.
The GB40 jump pack is perfectly suited for owners of consumer vehicles seeking reliable jump-starting for themselves or to assist others in need.
Credit: Ross Patton
SLA jump packs like the Clore Automotive JNC660 have lower watt-hour ratings than LI models, designed for high current bursts over short periods rather than sustained wattage draw. However, they can power 12V accessories for several hours, with the Dewalt DXAEJ14 and Stanley J5C09 including USB ports for mobile device charging.
While not the most powerful jump starter in terms of cranking amps, the GOOLOO 2000 jump pack offers exceptional battery performance that is particularly useful for charging electronics.
Credit: Rob Woodworth
Craftsmanship and Durability Assessment
Our craftsmanship and durability evaluation focused on build quality, waterproof ratings, switch and control robustness, cable length, and overall device feel, considering intended storage environments from glove compartments to work trucks.
For a robust, heavy-duty lithium-ion jump pack, the NOCO Boost HD GB70 is the top choice. Its permanently attached cables ensure immediate readiness, and its hard-wearing materials, heavy-gauge cables, and secure port covers reflect meticulous durability-focused design.
Lead-acid battery jump packs are notably larger and heavier compared to their lithium-ion counterparts, illustrating the difference in form factor and portability.
Credit: Eric Bissell
The NOCO Boost HD GB70 excels in craftsmanship, featuring durable materials, robust cables, and well-protected ports, emphasizing its build quality and longevity.
The HULKMAN Alpha85S includes an emergency red flashlight setting, a valuable, often overlooked feature for critical situations.
The Alpha85S jump pack is equipped with a red flashing light setting designed for emergency situations, enhancing its utility in roadside assistance and safety.
Credit: Ross Patton
The Clore Automotive JNC660, while basic in features, stood out as the most rugged SLA jump starter with heavy-duty cables and minimal breakable components. The Dewalt and Stanley models, with more features, had more potential failure points and easily losable parts. The GOOLOO 2000, while reasonably built, used thinner plastics and cables and lacked port protection, suggesting a budget-focused design compared to more premium units.
Ease of Use Assessment
Ease of use ratings favored features that enhanced user experience and penalized confusing or inefficient interfaces.
The HULKMAN Alpha85S scored highest, requiring only connection, power-on, and a clear “READY” indicator before jump-starting.
The HULKMAN Alpha85S jump pack features a clear digital display showing exact battery level and a “ready” indicator, simplifying the jump-starting process for ease of use.
Credit: Ross Patton
The Clore Automotive JNC660 was noted for its simplicity, requiring only battery connection for operation. The NOCO Boost HD GB70 was also straightforward but included safety features that might require a slight learning curve.
Carrying cases included with lithium-ion jump pack types significantly improve their portability and ease of storage for future use, keeping all components organized.
Credit: Rob Woodworth
The Dewalt DXAEJ14 was less intuitive, requiring manual consultation for proper operation and lacked an auto-off feature, potentially leading to battery drain if not manually powered down.
Versatility Evaluation
Versatility scoring considered core jump-starting function and additional features for everyday utility. Models with more features for home or job site use scored higher.
The Dewalt DXAEJ14 excels in versatility, offering a 120 PSI air compressor, pressure gauge, multiple power ports, work lights, and an alternator tester, ideal for comprehensive power needs at home or on job sites.
Having a built-in air compressor in a jump pack is exceptionally useful for managing tire pressure across various wheeled vehicles and equipment, adding to its versatility.
Credit: Rob Woodworth
For most users, models like the HULKMAN Alpha85S or NOCO Boost Plus GB40 provide ample versatility, charging various devices and offering multiple recharge methods. The Clore Automotive JNC660 was the least versatile, lacking USB ports and offering charging only via extension cord.
While numerous jump pack options exist, we dedicate time to identify those that offer the best overall performance and versatility, helping you choose the right type for your home and vehicle needs.
Credit: Eric Bissell
Conclusion: Choosing the Right Best Jump Pack
We trust this review clarifies your search for the ideal jump pack. In a market saturated with options, we aim to help you select a model that best fits your specific needs. A dead car battery is a common issue, and our testing is designed to assure you that you can avoid being stranded, whether on the roadside, in remote areas, or wherever your adventures take you.
In many situations, relying on assistance for a jump start is not feasible, making a personal jump pack essential.
Having a jump pack readily available can truly be a lifesaver, providing independence and security in unexpected car battery emergencies.
A jump pack is an invaluable tool, especially for those who frequently venture into remote areas or require reliable self-sufficiency in vehicle emergencies.
