Car Jump Starters
Car Jump Starters That Fire Up a Dead Battery Fast
4 picks compared
8 min read
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?How we pickedWe compare published specifications, safety certifications and thousands of verified owner reviews, and we do not physically test every unit. Read the full process in our review methodology.
NOCO Boost Plus GB40
★★★★★ 4.7 / 5 Best overall
The GB40 is the pack most drivers should own. It is rated at 1000 amps and NOCO says it will start gas engines up to about 6 liters and diesels up to about 3 liters. Spark-proof clamps and reverse-polarity protection make it forgiving for first-timers, and it doubles as a USB power bank and flashlight.
Peak current 1000 ampsEngine range Gas up to ~6L, diesel up to ~3LExtras USB power bank and LED light
- Beginner-friendly safety features
- Compact enough for the glovebox
- Reliable brand with good support
- Not enough power for large diesel trucks
- Charges slowly over micro-USB
Avapow Car Battery Jump Starter
★★★★★ 4.5 / 5 Best budget
Avapow packs a lot of value into a low price. This unit advertises a high peak amp rating that covers most gas and mid-size diesel engines, and it includes a big battery for charging phones. It is a strong choice if you want capable output without paying a premium name-brand price.
Peak current High peak rating for most gas and mid dieselBattery Large capacity for device chargingExtras Bright LED flashlight modes
- Excellent value for the output
- Big power bank for phones and tablets
- Clear LCD or LED status indicators
- Peak amp marketing is optimistic, real cranking power is lower
- Support and long-term reliability are less proven than NOCO
GOOLOO GP4000 Jump Starter
★★★★★ 4.6 / 5
The GP4000 targets drivers who want extra headroom. Its high peak output handles larger gas engines and many diesels, making it a good fit for full-size trucks and SUVs. It also works as a hefty power bank and has a built-in light for roadside use at night.
Peak current High output for large gas and many dieselsBest for Trucks, SUVs, larger enginesExtras USB charging and LED light
- Plenty of power for bigger engines
- Doubles as a large power bank
- Sturdy clamps and cables
- Bulkier and heavier than compact packs
- Overkill for a small commuter car
NOCO Boost HD GB70
★★★★★ 4.7 / 5
When you drive a big diesel or tow for a living, the GB70 is the heavy-duty answer. It is rated at 2000 amps and NOCO says it covers gas engines up to about 8 liters and diesels up to about 6 liters. It carries the same trusted safety features as the GB40 in a larger body.
Peak current 2000 ampsEngine range Gas up to ~8L, diesel up to ~6LExtras Power bank and LED light
- Handles large diesel trucks and vans
- Same safety features as the GB40
- Rugged, well-built clamps
- Costs noticeably more than the GB40
- Heavier and less pocketable
Published July 16, 2026 · Availability last checked July 2026 · Reviewed by the UAI editorial team · How we research and score
Size the jump starter to your engine
The single most important spec is whether the pack can crank your engine. Small four-cylinder cars are easy, but big gas V8s and diesels demand far more current. Check the maker's stated engine range in liters rather than the peak amp headline, and pick a pack rated comfortably above your vehicle's needs, especially in cold climates.
Look past the peak amp headline
Many inexpensive units advertise eye-catching peak amp numbers that do not translate to real cranking power. A more honest guide is the engine size the brand recommends and how the pack performs in cold weather according to owner reviews. Trusted brands tend to publish conservative, realistic ratings you can rely on.
Value the safety features and extras
Reverse-polarity protection and spark-proof clamps take the fear out of hooking up a dead battery, which matters if you are not a mechanic. Beyond that, a built-in flashlight and USB power bank turn the pack into a general roadside tool. Keep it charged a few times a year so it is ready when you need it.
Model numbers and safety
Each pick lists its model above. Product availability and recalls change, so confirm the exact model and its current recall status on cpsc.gov before buying.
More guides
See our full buying guides hub and our research and scoring methodology. Every pick is judged on the same weighted criteria: owner satisfaction, performance, ease of use, reliability and value.
Questions people ask
How many amps do I need to jump my car?
A typical gas car or small SUV starts fine with a 400 to 1000 amp pack. Larger V8 gas engines and diesels need more, so step up to a 2000 amp unit like the GB70. When in doubt, buy a little more capacity than you think you need.
Are peak amp ratings reliable?
Not always. Budget brands often advertise very high peak numbers that do not reflect sustained cranking power. Look at the engine size the maker recommends and read owner reviews for real-world diesel and cold-weather results rather than trusting the headline amp figure.
How do I use a jump starter safely?
Turn off the car, connect the red clamp to positive and black to negative, and keep clamps clear of moving parts. Modern packs like the NOCO units have reverse-polarity and spark protection, but you should still follow the included instructions.
The bottom lineSo which one?
The NOCO Boost Plus GB40 is the best pick for most drivers with its safe design and glovebox size. Choose the Avapow to save money, the GOOLOO GP4000 for extra power, or the NOCO GB70 if you run big diesel engines.
