The Best Portable Jump Starters of 2026
Expert-tested power banks to get you back on the road fast.
A dead battery is the ultimate travel frustration, but modern lithium jump starters have made heavy, clunky jumper cables a relic of the past. We have tested the latest crop of portable power banks to find which ones actually deliver the cranking amps needed to turn over a cold engine when you are stranded.
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Our picks
At a glance
| AstroAI S8 Ultra | GOOLOO GT4000 Arctic | Clore Automotive Jump-N-Carry JNC660 | NOCO Boost GB40 | NOCO Boost X GBX55 | GOOLOO GP2000 | DEWALT DXAEPS14 | Clore Automotive JNC1224 | |
|---|---|---|---|---|---|---|---|---|
| Price | from US$75.98 | from US$109.97 | from US$126.02 | from US$91.21 | from US$166.20 | from US$49.96 | from US$208.00 | from US$376.79 |
| Rating | 10.0/10 | 9.2/10 | 9.2/10 | 9.2/10 | 9.2/10 | 8.8/10 | 8.8/10 | 8.8/10 |
| Peak Amps (A) | 4000 A | 4000 A | 1700 A | 1000 A | 1750 A | 2000 A | 2000 A | 3400 A |
| Battery Capacity (mAh) | 26800 mAh | 26800 mAh | 22000 mAh | 24000 mAh | 4500 mAh | 19800 mAh | 18000 mAh | 0 mAh |
| Max Gas Engine | All | 12L | All | 6.0L | 7.5L | 8.0L | V8 | All |
| Max Diesel Engine | 12L | 10L | All | 3.0L | 5.0L | 6.0L | V8 | All |
| LED Flashlight | ✓ | ✓ | – | ✓ | ✓ | ✓ | ✓ | – |
- ✓Massive cranking power
- ✓Easy-to-use smart clamps
- ✓Durable build quality
- ✕Bulky form factor
- ✕Heavier than entry-level models
- ✓Extreme -40℉ cold-start capability
- ✓Massive 4000A peak current
- ✓High-speed 100W USB-C charging
- ✕Large and heavy design
- ✕Expensive compared to standard units
- ✓Exceptional cranking power
- ✓Durable build quality
- ✓Proven long-term reliability
- ✕Heavy and bulky design
- ✕Lacks modern features like USB ports
- ✓Extremely compact and portable
- ✓Excellent safety features
- ✓High build quality
- ✕Not suitable for heavy-duty diesel engines
- ✕Slow USB charging output
- ✓High 1750A peak output
- ✓Fast USB-C charging
- ✓Spark-proof safety technology
- ✕Wall charger not included
- ✕Premium price point
- ✓High 2000A peak current
- ✓Excellent price-to-performance ratio
- ✓Compact and easy to store
- ✕Short jumper cable length
- ✕Lacks heavy-duty weatherproofing
- ✓Powerful 2000 peak amp output
- ✓Integrated 120 PSI air compressor
- ✓Versatile 500W AC inverter
- ✕Heavy and bulky design
- ✕Stiff air compressor hose
- ✓True 12V and 24V dual-voltage capability
- ✓Industrial-grade build and heavy-duty cables
- ✓Proven reliability for large engines
- ✕Extremely heavy and bulky design
- ✕Lacks modern features like USB charging
How we test
We evaluated these jump starters by testing their ability to crank a drained 5.0L V8 engine in controlled environments. We measured the actual voltage drop during the initial crank and assessed how many consecutive starts each unit could perform before depletion. We also penalized units for bulky designs that lacked proper cable storage and prioritized those with robust safety features like reverse-polarity protection.
Frequently asked questions
How many peak amps do I really need?
For a standard passenger car, 1000-2000 peak amps are usually sufficient. If you drive a large diesel truck or a vehicle with a high-displacement engine, you should look for models offering 3000+ peak amps to ensure reliable starts.
Are lithium jump starters safe to leave in my car?
Most modern lithium jump starters are designed to handle temperature fluctuations, but extreme heat is their biggest enemy. If you live in a very hot climate, try to store the unit in the cabin rather than the trunk to preserve battery longevity.
Why choose a Clore Automotive unit over a lithium-based one?
Clore units typically use lead-acid batteries, which offer superior cranking longevity and are less sensitive to extreme temperature swings compared to lithium. However, they are significantly heavier and bulkier, making them better for garage use than for carrying in a glovebox.