Jump Starters Strong Enough for V8 and Diesel Engines
The NOCO Boost X GBX55 is the strongest overall pick, rated for gas engines up to 9 liters and diesel engines up to 7.5 liters from a single lithium pack. Owners of smaller daily drivers can save money with the NOCO Boost Plus GB40, while anyone who tows or runs diesel trucks regularly should size up to the DEWALT DXAEPS2 instead.
The NOCO Boost X GBX55 leads this list because its 1750 peak amp output covers gas and diesel engines that smaller jump starters cannot safely handle. It adds a built-in air compressor that most competitors skip entirely. The main tradeoff is bulk, since it sits larger and heavier than glovebox-friendly units built for smaller cars.
We compared published peak amperage ratings, supported engine displacement, charge retention over time and included extras like air compressors and lighting across each unit.
Before you buy
What peak amps and engine ratings actually mean Peak amps measure the short burst of current a jump starter can deliver, not a sustained output. Manufacturers translate that number into an engine size rating, like the NOCO Boost X GBX55’s 9.0 liter gas rating, based on typical starter motor draw. Buyers should match the rating to their largest vehicle, not their smallest, since a starter rated for a sedan will not safely jump a diesel truck.
Lithium packs versus built-in battery units Most jump starters, including the NOCO and Gooloo models here, use compact lithium cells that charge fast and store energy for months without major loss. The DEWALT DXAEPS2 instead uses a built-in AGM battery, which performs more consistently in extreme heat or cold but adds significant weight and bulk. Drivers who jump start often in freezing conditions may still prefer AGM’s steadier output over lithium’s occasional cold-weather dip.
Matching a jump starter to vehicle size Compact cars and most sedans only need a unit like the NOCO Boost Plus GB40 or Antigravity XP-10 HD, both rated well within typical four and six cylinder engine draw. Trucks, SUVs and anyone who tows should look toward higher-rated units like the Gooloo GP4000 or TOPDON JS1000. Diesel owners need the highest ratings on this list, since diesel engines draw significantly more starting current than equivalent gas engines.
Extra features worth paying for A built-in air compressor, found on the NOCO Boost X GBX55, replaces a separate inflator for low tire pressure on the road. USB output ports, standard on most units here, let a jump starter double as an emergency phone charger. Buyers who jump start only occasionally should weigh these extras against a unit’s price, since a basic model without compressors or inverters still handles the core job.
The top picks, ranked
NOCO Boost X GBX55
A 1750 peak amp lithium pack starts gas engines up to 9 liters and diesel engines up to 7.5 liters, covering trucks and SUVs most compact starters cannot. A built-in 150 PSI air compressor handles low tires without a separate tool. Spark-proof clamps and reverse polarity protection reduce the risk of user error during a stressful roadside jump.
Pros
- Rated for large gas and diesel engines in one unit
- Built-in air compressor removes need for a separate inflator
- Spark-proof clamps reduce risk during connection
Cons
- Larger and heavier than glovebox-sized jump starters
- Costs more than units rated for smaller engines only
NOCO Boost Plus GB40
A 1000 peak amp rating covers most gasoline engines up to 6 liters, enough for the sedans, hatchbacks and smaller SUVs most drivers own. Its compact size fits a glovebox or center console without crowding other items. A built-in LED light includes an SOS and strobe mode for roadside visibility at night.
Pros
- Compact enough to store permanently in a glovebox
- Covers the vast majority of everyday gas engines
- LED light adds real roadside visibility at night
Cons
- Not rated for larger trucks or diesel engines
- Lower peak amperage than heavy duty starters
DEWALT DXAEPS2
A built-in AGM battery paired with jumper cables delivers consistent power for larger trucks and commercial vehicles that smaller lithium packs struggle with. A digital display shows battery voltage and charge status at a glance. The unit doubles as a 120-watt power inverter, useful on job sites without lithium packs’ temperature sensitivity.
Pros
- AGM battery performs reliably in extreme temperatures
- Digital display tracks charge status clearly
- Built-in inverter powers small tools and devices
Cons
- Heavier and bulkier than lithium-based jump starters
- Slower to recharge fully than compact lithium units
TOPDON JS1000
A 2000 peak amp lithium battery is rated to deliver roughly 30 jump starts on a single charge, reducing how often it needs a recharge in storage. Smart clamps detect battery polarity automatically and will not engage on a reversed connection. A built-in flashlight runs in steady, strobe and SOS modes for emergencies.
Pros
- High jumps-per-charge rating reduces recharge frequency
- Smart clamps prevent reversed polarity connections
- Strong peak amperage for its compact size
Cons
- Screen and button layout feels less intuitive than competitors
- Case runs larger than NOCO’s compact GB40
Antigravity XP-10 HD
A pocket-sized lithium pack still delivers enough peak amperage for most four and six cylinder engines despite its small footprint. The built-in flashlight and USB output double as a backup phone charger during a breakdown. Its small size trades away the higher engine ratings that bulkier units like the NOCO Boost X offer.
Pros
- Small enough to carry in a backpack or glovebox corner
- Doubles as a phone charger during breakdowns
- Lighter than nearly every other unit on this list
Cons
- Lower peak amperage limits it to smaller engines
- Not suited to trucks, SUVs or diesel engines
Gooloo GP4000
A 4000 peak amp rating covers gas engines up to 10 liters and diesel engines up to 8.5 liters, matching heavy duty competitors at a lower price point. Dual USB ports let it charge two phones or tablets at once while in storage mode. Build quality on the clamps and casing feels less refined than premium brands at this amperage range.
Pros
- High peak amperage at a lower price than premium brands
- Dual USB ports charge two devices simultaneously
- Rated for both large gas and diesel engines
Cons
- Build quality on clamps feels less premium than NOCO or DEWALT
- Shorter warranty coverage than higher priced competitors
Audew Portable Car Jump Starter
A 2000 peak amp lithium pack is built with a low-temperature discharge design intended to perform in cold climates where standard lithium cells can struggle. Quick-charge input recovers the unit’s own battery faster than older jump starter designs. A compact carrying case keeps clamps and cables organized in a trunk.
Pros
- Cold weather discharge design suits winter climates
- Quick-charge input recovers the unit faster than older models
- Carrying case keeps cables and clamps organized
Cons
- Peak amperage trails the TOPDON JS1000 at a similar price
- Instructions are less detailed than NOCO’s included guide
The lineup, side by side
| # | Model | Peak Amps | Best for | Score | Price |
|---|---|---|---|---|---|
| 1 | NOCO Boost X GBX55 | 1750A | Best Overall | 9.2 | Check price |
| 2 | NOCO Boost Plus GB40 | 1000A | Best for Daily Drivers | 8.9 | Check price |
| 3 | DEWALT DXAEPS2 | Built-in AGM | Best Heavy Duty for Trucks | 9.0 | Check price |
| 4 | TOPDON JS1000 | 2000A | Best for Multiple Jumps per Charge | 8.7 | Check price |
| 5 | Antigravity XP-10 HD | 800A | Best Compact Lithium | 8.5 | Check price |
| 6 | Gooloo GP4000 | 4000A | Best Budget Option | 8.3 | Check price |
| 7 | Audew Portable Car Jump Starter | 2000A | Best for Cold Weather Starts | 8.2 | Check price |
Questions worth asking
How many peak amps do I need to jump start a car?
Most sedans and smaller SUVs start reliably with 800 to 1000 peak amps, like the NOCO Boost Plus GB40 provides. Trucks and diesel engines need 2000 peak amps or more.
Can a jump starter damage my car’s electronics?
A jump starter with reverse polarity protection and spark-proof clamps, like the NOCO Boost X GBX55, is designed to prevent incorrect connections from damaging a vehicle’s electrical system.
How long does a lithium jump starter hold its charge in storage?
Most lithium jump starters, including the models here, hold a usable charge for several months in storage, though manufacturers recommend topping off the charge periodically.
Is a lithium jump starter better than one with a built-in battery?
Lithium packs are lighter and charge faster, while built-in AGM battery units like the DEWALT DXAEPS2 tend to perform more consistently in extreme temperatures.
Can I jump start a diesel truck with a compact jump starter?
No. Compact units rated for smaller gas engines, such as the Antigravity XP-10 HD, do not carry enough peak amperage for diesel starter motors.
Do jump starters work in cold weather?
Performance varies. Units built with cold-weather discharge cells, like the Audew Portable Jump Starter, are designed specifically to reduce the cold-weather power loss common in standard lithium cells.
What is the benefit of a built-in air compressor on a jump starter?
It lets drivers address a low tire and a dead battery with one device, as the NOCO Boost X GBX55 offers, instead of carrying two separate tools.
How many times can a jump starter be used before recharging?
This varies by capacity and engine size. The TOPDON JS1000 is rated for roughly 30 jump starts per charge on smaller engines, though larger engines draw more per use.
Are budget jump starters safe to use?
Budget units like the Gooloo GP4000 can perform well if they include basic safety features like reverse polarity protection, though build quality and warranty support often trail premium brands.
Our take
The NOCO Boost X GBX55 suits drivers who own trucks, SUVs or diesel vehicles and want one jump starter that also handles low tires. Owners of smaller sedans and daily drivers should save money with the NOCO Boost Plus GB40 instead, since its lower amperage still covers typical four and six cylinder engines. Anyone who regularly jump starts commercial trucks or works in extreme temperatures should consider the DEWALT DXAEPS2 for its built-in AGM battery and steadier cold-weather output.
Tony Russo
Tony trained as an automotive technician and spent years in service and parts retail before moving into writing. He focuses on garage tools, car care products and accessories from a hands-on maintenance perspective.
