Skip to content
Clamp & Crank

Jump Starters

The best jump starters for a Jeep Wrangler

Accessory loads, aired-down tires and a battery that spends its life being shaken. A Wrangler asks a jump pack slightly different questions.

By Ryder M.Last updated
An open hard tool case in cold weather

Disclosure: we earn a commission if you buy through the Amazon links on this page, at no extra cost to you. Commission never decides a verdict or a ranking position — read our editorial policy and affiliate disclosure.

How we assessed these: picks are selected from manufacturer specifications, current retailer listings and published owner feedback — not from hands-on testing of every unit. Where a manufacturer does not publish a figure, it is left out rather than estimated.

Short answer

For most Jeep Wranglers, the NOCO Boost Plus GB40 is the right pack: 1,000 peak amps and a 6.0-liter gas rating cover the 3.6-liter Pentastar and the 2.0-liter turbo with margin, and its IP65 enclosure matters on a vehicle that gets wet. Step up to the GB70 for the 3.0-liter EcoDiesel or the 6.4-liter 392.

Quick picks

Tap any row to jump to the full write-up. Scoring criteria are published in full on our methodology page.

#ProductBest forOur readPrice
1
A compact lithium jump starter beside a car battery in an engine bay

NOCO Boost Plus GB40

Best overall for a Wrangler

Most cars and small SUVs1,000 A, IP65, 2.45 lb — correctly sized for a Pentastar
Check price on Amazon

#ad Affiliate link · We show no price here; Amazon shows the current one

2
An open hard tool case in cold weather

NOCO Boost X GBX45

Best for the overland kit

Travel and carry-on use1,250 A at 2.16 lb, USB-C Power Delivery in and out
Check price on Amazon

#ad Affiliate link · We show no price here; Amazon shows the current one

3
A pickup truck parked on a rural road

NOCO Boost HD GB70

Best for the diesel and the 392

Diesel pickups and big V8s2,000 A, 6.0 L diesel rating, 12 V 15 A output
Check price on Amazon

#ad Affiliate link · We show no price here; Amazon shows the current one

4
A workshop wall hung with automotive hand tools

DEWALT DXAEJ14 Power Station

Best if you air down

One box that jumps and inflatesJump plus a 120 PSI compressor in one case
Check price on Amazon

#ad Affiliate link · We show no price here; Amazon shows the current one

A Wrangler's electrical problems are rarely mysterious. The battery sits in a vehicle that vibrates more than a crossover does, often runs accessories with the engine off — lights, a fridge, a compressor, a winch controller — and frequently gets parked somewhere there is no second vehicle to borrow from. That last point is the one that should decide the purchase: on a trail, a jump pack is not a convenience, it is the whole recovery plan.

Sizing it to the engine

NOCO published ratings against the Wrangler's engine options
EngineFuelSmallest pack we would buyWhy
2.0 L turboGasNOCO GB401,000 A and a 6.0 L gas rating is ample headroom
3.6 L PentastarGasNOCO GB40Comfortably inside the 6.0 L gas rating
3.0 L EcoDieselDieselNOCO GB70The GB40 stops at 3.0 L diesel — no margin at all
6.4 L (392)GasNOCO GB70Its 8.0 L gas rating is the first one with real headroom

Pack ratings are NOCO's published figures. The "smallest pack we would buy" column is our editorial judgment applied to those ratings, not a Jeep or NOCO recommendation.

The EcoDiesel is the case worth being blunt about. NOCO rates the GB40 to 3.0 liters of diesel, which is exactly the EcoDiesel's displacement — buying a pack at the precise edge of its rating is how people end up stranded twice. The GB70's 6.0-liter diesel rating is the margin you want. Jump starters for diesel trucks explains why diesel ratings sit so far below gas ratings on the same hardware.

The specs that matter on a Jeep and nowhere else

  • Water resistance. The GB40, GB50 and GB70 are IP65; the GBX series is IP65 with the port covers closed. On a vehicle with removable doors and a soft top, that is not a theoretical spec.
  • Accessory output. The GB70 publishes a 12 V 15 A output, which will run a socket-powered inflator or a light directly off the pack. On a trail where the vehicle battery is the problem, having a second 12 V source is genuinely useful.
  • Weight against where it rides. A Wrangler has nowhere comfortable to put a heavy pack. The GBX45 at 2.16 lb fits a console or a door pocket; the GB70 at 4.18 lb wants a dedicated bag.
  • Reserve for repeated attempts. A hard-to-start engine after a water crossing may take several goes. The GB70's 56 Wh gives you more of those than the GB40's 24 Wh.
  • Heat. A Jeep parked in the sun is hot inside. Jump starter storage and heat is specific about what that costs a lithium pack over a few summers.

Airing back up is part of the same purchase

If you air down for trails, you have signed up for a second job at the end of the day, and it is a bigger job than a top-up. The DEWALT DXAEJ14's built-in 120 PSI compressor is the convenient answer and the weakest of the three things it does — its licensee publishes no duty cycle for it, which is the figure that decides whether a compressor can do four tires without stopping to cool.

The serious answer is a dedicated compressor alongside a lithium pack. The VIAIR 400P publishes a 33 percent duty cycle at 100 PSI, 2.30 CFM at 0 PSI and a 25-foot air hose that reaches all four corners from one battery hookup — see tire inflators for off-road use. Two tools, both doing their own job properly, is the honest recommendation for anyone who airs down more than once a year.

The accessory-drain problem a jump pack does not fix

If your Wrangler flattens its battery while parked with the engine off, a jump pack is a tourniquet, not a cure. Winch controllers, aftermarket lighting and poorly installed accessories all draw current that the factory battery was never asked to supply. A pack gets you home; a charger and a meter tell you what happened. How to tell if a car battery is bad is the diagnostic order, and are portable jump starters worth it is honest about what a pack can and cannot solve.

The picks in full

A compact lithium jump starter beside a car battery in an engine bay

1. Best overall for a Wrangler

NOCO Boost Plus GB40

NOCO · Best for most cars and small suvs

The default answer for a four- or six-cylinder car: 1,000 peak amps, 24 watt-hours, and light enough that it actually stays in the trunk.

Published specifications

Peak amps
1,000 A source
Internal battery
24 Wh lithium-ion source
Gas engine rating
Up to 6.0 liters source
Diesel engine rating
Up to 3.0 liters source
Weight
2.45 lb (1.11 kg) source
Water resistance
IP65 source
Flashlight
100 lumens source
Warranty
1-year hassle-free source

What works

  • 24 Wh sits far under the 100 Wh carry-on threshold, so flying with it needs no airline approval
  • 2.45 lb and pocketable — the size that decides whether a tool is still in the trunk six months later
  • IP65 enclosure, so a wet shoulder in the rain is not a problem
  • Reverse-polarity protection means a backwards clamp does not spark

What does not

  • 1,000 peak amps runs out of headroom above a 6.0 L gas engine
  • The 3.0 L diesel ceiling rules out most modern diesel pickups
  • 24 Wh is a small reserve — it is a jump starter, not a power bank substitute

Skip it if

Not the one to buy if you drive a diesel pickup or a big V8. You would be at the edge of its rating on a cold morning, which is exactly when you want margin.

Check price on Amazon

#ad Affiliate link · We show no price here; Amazon shows the current one

Raw specifications: NOCO’s own page for the NOCO Boost Plus GB40.

An open hard tool case in cold weather

2. Best for the overland kit

NOCO Boost X GBX45

NOCO · Best for travel and carry-on use

The travel pick: 1,250 peak amps at 2.16 lb with USB-C Power Delivery in and out, so it recharges from the same brick as your laptop.

Published specifications

Peak amps
1,250 A source
Internal battery
31 Wh lithium-ion source
Gas engine rating
Up to 6.5 liters source
Diesel engine rating
Up to 4.0 liters source
Weight
2.16 lb (0.98 kg) source
USB-C output
Up to 20 V / 3 A Power Delivery source
Water resistance
IP65 with ports closed source
Warranty
1-year hassle-free source

What works

  • Lightest pack in the range at 2.16 lb, and 31 Wh means no airline paperwork
  • USB-C Power Delivery both directions — one cable covers the pack, phone and laptop
  • More gas headroom than the GB40 (6.5 L against 6.0 L) in a lighter body

What does not

  • The IP65 rating only holds with the port covers closed — worth remembering in the rain
  • The 4.0 L diesel ceiling is not enough for a full-size diesel pickup

Skip it if

Not the right pack for a diesel truck, and not the cheapest way to cover a small commuter — its premium buys packability, not amps.

Check price on Amazon

#ad Affiliate link · We show no price here; Amazon shows the current one

Raw specifications: NOCO’s own page for the NOCO Boost X GBX45.

A pickup truck parked on a rural road

3. Best for the diesel and the 392

NOCO Boost HD GB70

NOCO · Best for diesel pickups and big v8s

The one to buy if you drive a diesel: 2,000 peak amps, a 6.0-liter diesel rating and 56 watt-hours, which is the smallest pack with real margin on a cold diesel.

Published specifications

Peak amps
2,000 A source
Internal battery
56 Wh lithium-ion source
Gas engine rating
Up to 8.0 liters source
Diesel engine rating
Up to 6.0 liters source
Weight
4.18 lb (1.9 kg) source
Recharge
3 hours at 12 V / 3 A source
Water resistance
IP65 source
Flashlight
400 lumens source
Warranty
1-year hassle-free source

What works

  • The 6.0 L diesel rating covers the common 3.0 L and 6.7 L light-truck diesels with margin
  • 56 Wh is still comfortably under the 100 Wh carry-on threshold, so it flies as hand luggage
  • 12 V 15 A accessory output, and a 400-lumen light that is genuinely usable roadside
  • 12 V / 3 A fast charge brings it back in about three hours

What does not

  • 4.18 lb — noticeably heavier than the compact packs, and it wants a dedicated spot
  • Overkill for a commuter four-cylinder; you are paying for headroom you will not use

Skip it if

Not the one to buy if you only ever start a four-cylinder commuter. Buy diesel headroom when you have a diesel.

Check price on Amazon

#ad Affiliate link · We show no price here; Amazon shows the current one

Raw specifications: NOCO’s own page for the NOCO Boost HD GB70.

A workshop wall hung with automotive hand tools

4. Best if you air down

DEWALT DXAEJ14 Power Station

DEWALT · Best for one box that jumps and inflates

A lead-acid jump station with a built-in 120 PSI digital compressor and USB-A plus USB-C power — the combo box for people who would rather carry one heavy thing than two light ones.

Published specifications

Jump starting
1,600 peak amps, rated to start most 4-, 6- and 8-cylinder engines source
Air compressor
120 PSI digital, with AUTOSTOP source
USB output
USB-A 15 W and USB-C 25 W source
Battery types
12 V lead-acid: wet, gel and AGM source
Diagnostics
Alternator Check, plus reverse-polarity protection source
In the box
Clamps and cables, sports needle adapter source

What works

  • Jump starter, 120 PSI compressor and USB-A/USB-C power in a single case
  • 1,600 peak amps is rated for 4-, 6- and 8-cylinder engines
  • Lead-acid chemistry is untroubled by living in a hot trunk
  • Alternator Check tells you whether the jump was the problem or the symptom

What does not

  • Heavy and bulky next to any lithium pack — the usual reason combo boxes end up in the garage
  • Lead-acid self-discharges, so it needs topping up on a schedule or it is flat when you need it
  • The built-in compressor is a convenience feature, not a match for a dedicated inflator's duty cycle
  • DEWALT's licensee publishes no weight, cable gauge, battery capacity or compressor duty cycle for this unit

Skip it if

Not for anyone whose priority is packed size or carry-on travel. If the tool has to fit a door pocket or a suitcase, buy a lithium pack and a separate inflator.

Check price on Amazon

#ad Affiliate link · We show no price here; Amazon shows the current one

Key takeaways

  • NOCO GB40 for the 2.0 L turbo and the 3.6 L Pentastar — right-sized, IP65, 2.45 lb.
  • NOCO GB70 for the 3.0 L EcoDiesel and the 392, because the GB40's diesel ceiling is 3.0 L exactly.
  • GBX45 if the pack has to disappear into a console or a suitcase.
  • Airing back up is a separate tool problem; a combo box is convenient, a VIAIR is correct.
  • A pack that keeps getting used is a sign of an accessory drain, not a sign you bought well.

How we sourced this

Every figure on this page came from one of the following. Where a manufacturer or regulator does not publish a number, we say so rather than estimate it.

Common questions

What jump starter should I buy for a Jeep Wrangler?
For the 2.0-liter turbo or the 3.6-liter Pentastar, the NOCO GB40 — 1,000 peak amps, a 6.0-liter gas rating and an IP65 enclosure that suits a vehicle with removable doors. For the 3.0-liter EcoDiesel or the 6.4-liter 392, step up to the GB70 for real margin.
Will a GB40 start a 3.0-liter EcoDiesel Wrangler?
It is rated to exactly 3.0 liters of diesel, which gives you no margin at all on a cold morning. We would buy the GB70, whose 6.0-liter diesel rating leaves headroom. Buying at the precise edge of a published rating is the most common sizing mistake in this category.
Do I need a jump starter with a compressor if I air down?
You need a compressor, and a combo box is one way to get one. It is the convenient option rather than the capable one: combo units rarely publish a duty cycle, which is the figure that decides whether a pump can refill four tires without overheating. A dedicated 12 V compressor plus a lithium pack is the better pairing.
Why does my Wrangler battery keep going flat?
Most often an accessory drawing current with the engine off, or a battery that has lost capacity after repeated deep discharges. A jump pack gets you moving but does not diagnose it. Measure resting voltage, then charging voltage with the engine running, before buying another battery.

More in Jump Starters

A jump pack is the one trunk tool that turns a tow truck into a five-minute inconvenience. This is how to size one, and which ones are worth the space.

A machine being driven across open grassland

Best for ATVs

Best for ATVs

Compact sealed packs sized for powersports batteries, chosen for surviving a dusty storage box and a long way from help.

Close-up of large truck tires on a heavy vehicle

Best for Off-Road

Best for Off-Road

Battery-clamp compressors built for repeated large-volume fills, and why the 12 V socket is the ceiling you have to get past.

A compact lithium jump starter beside a car battery in an engine bay

Review

NOCO GB40 Review

1,000 peak amps, 24 Wh, 2.45 lb. The default answer for a four- or six-cylinder car — and wrong for a diesel.

A pickup truck parked on a rural road

Best for Diesel Trucks

For Diesel Trucks

Packs with a published diesel rating that actually covers a 3.0 L to 6.7 L light-truck engine, with margin for a cold morning.

A technician testing an electrical panel with a meter

Guide

Is the Battery Bad?

The resting-voltage table, the cranking and charging checks, and how to tell a failed battery from a failing alternator or a parasitic drain.

Found something out of date, or a figure you can source better than we did? Tell us — corrections get read first. Our methodology explains how picks are made, and contact is one click away.