Best Portable Jump Starters in 2026: 5 Lithium Jump Boxes for Cars, Trucks and Dead Batteries

A dead battery used to mean finding a second car and a set of cables. A lithium jump starter the size of a paperback does the same job alone, in a parking garage or a driveway at 6 a.m. Our top pick is the S ZEVZO ET03: its maker rates it for gas engines up to 8.0 liters and diesels up to 7.0 liters, it has a screen that shows the charge level, and 6,566 owners rate it 4.6 stars. It is the one we would put in a family car or a half-ton truck.

We compared the 23 jump starters in our automotive catalog using the engine ratings and features in each listing and the owner ratings at the time of writing. We did not start engines with them, so treat the figures below as makers’ ratings, not our measurements. Prices change daily; every button opens the live Amazon page.

How we picked

• 12-volt lithium units with smart clamps that check the connection. All five list protection against reverse polarity and short circuits.
• An engine-size rating from the maker, for gas and diesel, so you can match the unit to your vehicle.
• Owner ratings of 4.4 stars or higher with more than 1,000 reviews each.
• Five different needs: an all-rounder, a small low-cost unit, a combined inflator, a unit rated for big engines and cold, and one from a long-established charger brand.

The picks

#1

Best overall

S ZEVZO ET03 Car Jump Starter 4000A Jump Starter Battery Pack for Up to 8.0L Gas and 7.0L Diesel Engines

4.6 · 6,566 ratings

9.2Our score

Maker engine ratingUp to 8.0L gas, 7.0L dieselPeak current (claimed)4,000 ABattery74 Wh lithium-ionWeight1.4 lbWorking temperature14 to 140 F

The ET03 covers the widest range of ordinary vehicles for the money. S ZEVZO rates it for 12V gas engines up to 8.0 liters and diesels up to 7.0 liters, and the smart clamps report errors with lights and a beep. For a battery so flat that the clamps see nothing, there is a force-start function; the listing says to use it only with the jump starter fully charged. It doubles as a 74 Wh power bank with two USB ports and a 500-lumen light. Several owners mention that it arrived mostly charged, one found it still at 100% after five months in storage, and another started three vehicles within 24 hours.

Pros

• 4.6 stars from 6,566 owners
• LCD screen shows remaining charge
• Force-start function for batteries the clamps cannot detect
• Storage case and USB-C charging cable included; two years of service support per the listing

Cons

• Working range starts at 14 F, higher than the other picks
• Maker claims up to 50 starts per charge; one Honda owner estimates about 10
• Force start needs the unit fully charged, per the listing

Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.

#2

Best compact, most reviewed

AstroAI S8 Car Battery Jump Starter 1500A - Portable 12V Lithium Jump Box

4.4 · 12,142 ratings

8.8Our score

Maker engine ratingUp to 6L gas, 3L dieselPeak current (claimed)1,500 ABattery8,000 mAh lithium-ionWeight15.2 oz (0.95 lb)Working temperature-4 to 122 F

If you drive a four- or six-cylinder gas car, you do not need a 5,000-amp label. The AstroAI S8 is rated by its maker for gas engines up to 6 liters and diesels up to 3 liters, weighs 0.95 lb and has a simple routine: connect the clamps, wait for the light, start the car. When battery voltage is under 9 volts the green light flashes and one press of the boost button sends power anyway. It has been bought and reviewed more than any other unit we list: 12,142 ratings at 4.4 stars. Owners report starting a Chevy Silverado 1500 and a car that had sat in storage for three months. One of them flags an instruction that is easy to miss: the manual says to disconnect the unit within 30 seconds of the engine starting.

Pros

• 12,142 owner ratings, the most of any jump starter in our catalog
• Under a pound, small enough for a glove box
• Boost mode for batteries below 9 volts
• Lowest price of the five when we checked

Cons

• 4.4 stars, a little below the other picks
• Diesel rating stops at 3 liters
• One long-term owner gets three to four boost starts per charge

Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.

#3

Best with tire inflator

GOOLOO A3 12V 3000A Portable Jump Starter with Air Compressor

4.4 · 4,581 ratings

8.8Our score

Maker engine ratingUp to 9.0L gas, 6.5L dieselPeak current (claimed)3,000 AInflator150 PSI max, 35 L/min, auto shut-offWeight3.5 lbWarranty18 months

This unit handles a flat battery and a soft tire from one case. The jump side is rated by GOOLOO for gas engines up to 9.0 liters and diesels up to 6.5 liters, with a boost button for very low batteries. The inflator reaches 150 PSI, moves 35 liters a minute and stops by itself at the pressure you set; GOOLOO says a full charge gives up to 45 minutes of pumping. One owner who uses it in a repair shop says it outperforms the larger jump pack it replaced; another gets about three pickup starts between charges.

Pros

• Jump starter and cordless tire inflator in one case
• Inflator has a digital gauge, presets and automatic shut-off
• 4,581 owner ratings at 4.4 stars
• Comes with five nozzles, pump tube and carrying bag

Cons

• 3.5 lb, the heaviest of the five
• Inflating tires uses the same battery you need for a jump
• One owner reports it would not work below zero until warmed up

Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.

#4

Best for large engines and cold

Povasee Jump Starter 5000A Car Jumper Starter, Model A30 12V Jump Box

4.5 · 5,815 ratings

9.0Our score

Maker engine ratingUp to 10L gas, 8L dieselPeak current (claimed)5,000 ABattery74 Wh lithium polymerWeight1.1 lb in the specs, 2.2 lb in the descriptionWorking temperature-22 to 140 F

For a V8 truck, a diesel pickup or a tractor, buy on the maker’s engine rating and leave headroom. Povasee rates the A30 for gas engines up to 10 liters and diesels up to 8 liters, and states an operating range of -22 to 140 F, the widest here. The owner reviews in our data back up the diesel claim better than most: one started a 30 HP diesel tractor with a dead battery in 10-degree weather, and others mention a one-ton diesel pickup and an F-250. The smart clamp gives no output until it is connected correctly, which is a safety feature, not a fault.

Pros

• Highest engine rating of the five from its maker
• Widest stated temperature range, down to -22 F
• 4.5 stars from 5,815 owners, with diesel pickup and tractor starts in the reviews
• Quick Charge 3.0 USB output and a 24-month warranty

Cons

• The listing gives two different weights
• No wall adapter in the box, only a USB cable
• Two owners find the plastic flap and power switch flimsy

Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.

#5

Best from a charger brand

Schumacher Electric 1000 Peak Amp 12V Portable Lithium Car Battery Jump Starter & Power Pack

4.5 · 1,173 ratings

9.0Our score

Maker engine ratingUp to 8.0L gas, 6.0L dieselPeak current (claimed)1,000 ARechargeAbout 4 hoursWeight2.07 lbStandard listedUL

Schumacher has made chargers and jump starters for decades, and its numbers are instructive. The SL1639 claims 1,000 peak amps, a quarter of the ET03’s figure, yet Schumacher rates it for gas engines up to 8.0 liters and diesels up to 6.0 liters. That tells you how loosely peak amps are used across brands. The unit has two USB outputs and an emergency light, recharges in about four hours, and its smart cables guard against reverse hook-up, short circuit and overload. Owners give it 4.5 stars across 1,173 reviews. A reviewer who runs a service shop found it good for one start per charge, so see it as an emergency unit for one car, not a shop tool.

Pros

• From Schumacher Electric, a long-running battery charger maker
• UL appears under standards met in the listing data
• Spark-free smart cables with reverse hook-up protection
• 4.5 stars from 1,173 owners

Cons

• Fewest reviews of the five
• A shop owner says it needs recharging after a single start
• A 1-star review in our data describes a unit overheating on charge

Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.

Compare the picks

How to choose: ignore the biggest number

Peak amps are not comparable between brands. Each maker sets the figure its own way. In this guide a 1,000 A Schumacher and a 4,000 A S ZEVZO carry almost the same engine rating. Use the peak-amp number only to compare models within one brand.

Buy on engine size, with margin. Find your engine’s displacement in the owner’s manual and choose a unit whose maker rates it comfortably above that, for your fuel type. Diesels need more cranking power than gas engines of the same size, and every engine is harder to turn in the cold.

Check the temperature range. The listings here give lower limits from 14 F (S ZEVZO) to -22 F (Povasee). A lithium pack delivers less when it is cold itself; a GOOLOO owner had to warm the unit under a coat before it would work below zero.

Decide what else it should do. All five charge phones over USB and have an emergency light; a charge display, a case and an inflator are the real differences. If you are equipping a car from scratch, our guides to front and rear dash cams and wireless backup cameras cover the other common add-ons.

Using a jump starter safely

This section is general. The manual for your jump starter and your vehicle’s owner’s manual come first, and some vehicles, hybrids in particular, have specific jump-start points or procedures.

• These are 12-volt units. Do not use them on 6-volt or 24-volt systems.
• Do not try to jump a battery that is cracked, leaking, swollen or frozen, and keep sparks and flames away from any battery.
• Connect the clamps in the order your manual gives, red to positive, and never let the clamps touch each other or the vehicle body while the unit is on.
• Boost or force-start modes are meant for deeply discharged batteries. On some units they skip part of the automatic checking, so confirm the polarity yourself before pressing the button, and do not hold the starter for longer than the manual allows.
• Once the engine runs, disconnect the clamps promptly, in the time and order the manual gives, and switch the unit off.
• Recharge on the schedule in the manual and never leave a lithium pack charging unattended. If a unit gets unusually hot, smells or swells, stop using it; one Schumacher review in our data describes a unit overheating on charge.
• A jump starter gets you moving; it does not fix the battery. Have the battery and charging system tested afterward.

Bottom line

The S ZEVZO ET03 is the jump starter we would buy for most vehicles. Pick the AstroAI S8 for a small gas car, the GOOLOO A3 if you also want an inflator, the Povasee A30 for big or diesel engines in cold places, and the Schumacher SL1639 if a familiar brand and a UL mark matter most to you.

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