Best Jump Starter: 6 Portable Packs by Engine Size, Battery and Clamps
Six portable jump starters compared by rated engine size, stated peak amps, battery capacity, boost mode, protections, extras and warranty, from a lead-acid shop box to lithium packs with an inflator.
On this page
Top picks at a glance
As an Amazon Associate we earn from qualifying purchases.
- 1
Best OverallAUTOONE JS029.6/10View on Amazon - 2
Best for V8sS ZEVZO ET039.6/10View on Amazon - 3
Best Shop Jump BoxClore JNC6609.5/10View on Amazon - 4
Best with InflatorNACKEO N409.5/10View on Amazon - 5
Autowit Super Capacitor Jump StarterView on Amazon - 6
DEWALT DXAEPS14 2000 Peak Amp Jump Starter with 120 PSI AirView on Amazon - 7
DEWALT DXAEJ14 1600 Peak Amp Jump Starter with 120 PSI AirView on Amazon
A portable jump starter gets a car with a flat battery running without a second car or cables. This guide compares six by rated engine size, battery capacity, dead-battery boost and extras, from a heavy lead-acid shop box to glovebox lithium packs.
GarageToolHQ earns a commission when you buy through links on this page, at no extra cost to you. Read our affiliate disclosure.
Quick picks
- Best Overall AUTOONE JS02: Rated for all gas and 12L diesel engines, 12,800 mAh, a UL line in its spec table, EVA case and a 2 year warranty. Check price on Amazon
- Best for V8s S ZEVZO ET03: Rated to 8.0L gas and 7.0L diesel with a 74 Wh battery, force start for 0V batteries and a 2 year warranty. Check price on Amazon
- Best Shop Jump Box Clore JNC660: A 22 Ah AGM lead-acid box with 46 in #2 AWG cables, a voltmeter and a 12V outlet. Check price on Amazon
- Best with Inflator NACKEO N40: Adds a 160 PSI auto-shutoff tire inflator to an all gas and 12L diesel jump starter. Check price on Amazon
The picks
AUTOONE 6000A Car Battery Jump Starter Up to All
A lithium jump starter rated for all gas and up to 12L diesel engines, with 12,800 mAh, a smart clamp with 10 protections and an EVA case.
Pros
- Rated for all gas and 12L diesel engines
- 10 protections including reverse polarity and spark
- Spec table lists UL as a specification met
- EVA case, 48 month standby claim, 2 year warranty
Cons
- UL line has no file number or listing mark detail
- 6,000 A peak is a marketing figure, not a standard rating
- No boost voltage threshold stated
- 12,800 mAh, less than some packs here
S ZEVZO ET03 Car Jump Starter 4000A Jump Starter
A 74 Wh lithium jump starter rated to 8.0L gas and 7.0L diesel, with force start for batteries at 0V and up to 50 jumps per charge.
Pros
- Rated to 8.0L gas and 7.0L diesel
- 74 Wh (20,000 mAh) battery
- Force start for batteries at 0V
- LCD display, 2 year warranty
Cons
- Force start needs the pack above 14V or fully charged
- No safety listing stated
- 4,000 A peak is a marketing figure
- 1.4 lb
Clore Automotive Jump-N-Carry JNC660 1700 Peak Amp
A 22 Ah AGM lead-acid jump box with 46 in heavy-duty #2 AWG cables, a voltmeter and a 12V outlet, rated 1,700 peak amps.
Pros
- 22 Ah AGM battery built for jump starting
- 46 in #2 AWG cables, the heaviest here
- Built-in voltmeter shows charge
- 12V DC outlet for accessories
Cons
- 18 lb, does not fit a glovebox
- Rated engine size not stated
- No USB power bank
- 1 year warranty
8000A Car Battery Jump Starter with Air Compressor
A lithium jump starter for all gas and 12L diesel engines with a built-in 160 PSI auto-shutoff tire inflator and a 600 lm light.
Pros
- Built-in 160 PSI inflator, 45 L/min, auto shutoff
- Rated for all gas and 12L diesel
- 21,800 mAh battery
- 2 year warranty
Cons
- 2.2 lb, bulkier than jump-only packs
- 8,000 A peak is a marketing figure
- No safety listing stated
- Newer brand
AstroAI S8 Car Battery Jump Starter 1500A
A compact 0.95 lb lithium jump starter rated to 6.0L gas and 3.0L diesel, with a boost mode for batteries under 9V.
Pros
- 0.95 lb, the lightest here
- Boost button unlocks under 9V
- Metal clamps, 8 protections
- 2 year warranty
Cons
- Rated only to 6.0L gas and 3.0L diesel
- 8,000 mAh
- Not for large diesel trucks
- No safety listing stated
TREKURE Car Battery Jump Starter 8000A 26800mAh
A 26,800 mAh lithium jump starter rated for all gas and 12L diesel engines, with force start, 8 AWG cables and an 800 lm light.
Pros
- 26,800 mAh, the largest lithium pack here
- 8 AWG cables
- 18W USB fast charging, 800 lm light
- V-0 flame-retardant shell, 10 protections
Cons
- Peak given as 8,000 A in the title and 9,000 A in the table
- Warranty listed only as 2
- No safety listing stated
- Newer brand
More options to compare
Autowit Super Capacitor Jump StarterCheck price on Amazon
DEWALT DXAEPS14 2000 Peak Amp Jump Starter with 120 PSI AirCheck price on Amazon
DEWALT DXAEJ14 1600 Peak Amp Jump Starter with 120 PSI AirCheck price on Amazon
Compare the picks
| Model | Shop Score | Rated engines | Peak amps (stated) | Battery | Dead battery mode | Extras | Weight | Warranty |
|---|---|---|---|---|---|---|---|---|
| AUTOONE JS02 | 9.6/10 | All gas, 12L diesel | 6,000 A | 12,800 mAh lithium | Smart clamp | USB power bank, light, EVA case | 0.5 kg | 2 years |
| S ZEVZO ET03 | 9.6/10 | 8.0L gas, 7.0L diesel | 4,000 A | 74 Wh (20,000 mAh) | Force start, 0V | LCD, USB, case | 1.4 lb | 2 years |
| Clore Jump-N-Carry JNC660 | 9.5/10 | Not stated | 1,700 A peak, 2,000 A jump starting | 22 Ah AGM lead-acid | Not stated | Voltmeter, 12V outlet, 46 in #2 AWG cables | 18 lb | 1 year |
| NACKEO N40 | 9.5/10 | All gas, 12L diesel | 8,000 A | 21,800 mAh lithium | Force start | 160 PSI inflator, 600 lm light | 2.2 lb | 2 years |
| AstroAI S8 | 9.5/10 | 6.0L gas, 3.0L diesel | 1,500 A | 8,000 mAh lithium | Boost under 9 V | Power bank, light | 0.95 lb | 2 years |
| TREKURE TK50 | 9.5/10 | All gas, 12L diesel | 8,000 A (title), 9,000 A (table) | 26,800 mAh lithium | Force start | 18W USB, 800 lm light, handle | 0.64 kg | Listed as 2, unit not given |
Specifications are manufacturer rated, as published on each listing and collected 5 October 2026. Peak amp figures are not measured to a common standard, so we compare the rated engine size first.
How we scored them
Each starter is scored out of 10 on performance, build, value, safety and warranty, with the weights published on our How We Pick page. A named UL, ETL or CSA listing earns safety points; only one listing here mentions UL at all.
| Product | Shop Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| AUTOONE JS02 | 9.6 | 30 | 20 | 21 | 3 | 3 |
| S ZEVZO ET03 | 9.6 | 30 | 21 | 21 | 0 | 3 |
| Clore JNC660 | 9.5 | 30 | 24 | 19 | 0 | 2 |
| NACKEO N40 | 9.5 | 30 | 20 | 21 | 0 | 3 |
| AstroAI S8 | 9.5 | 27 | 21 | 22 | 0 | 3 |
| TREKURE TK50 | 9.5 | 29 | 20 | 20 | 0 | 2 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
What the listings tell you
We read 14 jump starter listings. Peak amps run from 1,500 to 9,000 A, and the numbers rise every year without a shared test method. Rated engine size is more useful. Most lithium packs give a 1 to 2 year warranty, and almost none name an electrical listing.
Buying guide: jump starters
Rated engine size
Match the rating to your engine and fuel: diesels and large V8s need more. Cold weather raises the demand, so buy with margin if you live where it freezes.
Lithium or lead-acid
Lithium packs are small and hold charge for months. Lead-acid boxes like the Clore are heavy but have long, thick cables and suit a garage with several vehicles.
Boost and force start
Most packs refuse to send power to a battery reading near 0V as a safety measure. A boost or force start button overrides that; use it only after checking the clamps are on the correct terminals.
Keep it charged
Top it up every few months and after each use. For a car that sits, a battery maintainer prevents the flat battery in the first place.
Inflator combos
Built-in inflators top up a soft tire. For air tools, see our guide on how to choose an air compressor.
Lead-acid batteries can release hydrogen while charging, so charge in a ventilated space away from sparks and flames, connect positive first and negative last, set the charger to the battery type (flooded, AGM, gel, lithium), and wear eye protection. Read our Safety Disclaimer.
Frequently Asked Questions
How many amps do I need in a jump starter?
Go by the rated engine size rather than peak amps. A pack rated for your engine size and fuel type, with margin for cold weather, is the safer choice.
Can a jump starter charge a car battery?
No. It delivers a short burst to start the engine. Use a battery charger to recharge the battery afterward.
Can I leave a jump starter in a hot car?
Check the operating and storage range on the listing, typically about -4 to 140 F for lithium packs. Avoid leaving it in direct sun on the dashboard.
Is it safe to jump a car with a lithium pack?
Yes, with reverse polarity and spark protection, which all five lithium packs here claim. Connect red to positive, black to a ground point or negative, then switch on.
How long does a jump starter hold its charge?
Lithium packs claim months to years of standby. Check it every few months and recharge after each jump.
Related: the gift ideas for car guys, the best battery charger and maintainer, the best OBD2 scanner for DIY, our guide on how to choose an air compressor and the diagnostics and electrical hub.
