A dead battery is the most common reason cars break down, and it gets worse every winter, because cold weather cuts the power a battery can deliver right when your engine needs more of it to start. A portable jump starter fixes that in a couple of minutes, with no second car and no stranger needed.
We picked four portable jump starters worth buying in 2026, plus one gadget that stops the problem before it starts. Every pick comes with the real price and one honest catch.
Disclosure: As an Amazon Associate we earn from qualifying purchases. Prices are what we found at Walmart or on the brand’s own website on October 8, 2026. Amazon prices change often, so check today’s price before you buy.
Best portable jump starters at a glance
| Jump starter | Price | Peak amps | Engine size | Best for |
|---|---|---|---|---|
| NOCO Boost GB40 | $99.95 | 1,000A | Up to 6.0L gas / 3.0L diesel | Most cars |
| GOOLOO A3 (with air compressor) | $69.99 | 3,000A | Up to 9.0L gas / 6.5L diesel | Drivers who want one box for dead batteries and low tires |
| NOCO Boost HD GB70 | $199.95 | 2,000A | Up to 8.0L gas / 6.0L diesel | Trucks |
| Clore Jump-N-Carry JNC660 | $179.51 | 1,700A (peak) | Not listed (pro-grade) | Home garages |
Our quick picks
- Best overall: NOCO Boost GB40, $99.95
- Best with an air compressor: GOOLOO A3, $69.99
- Best for trucks and SUVs: NOCO Boost HD GB70, $199.95
- Best for the garage: Clore JNC660, $179.51
The best portable jump starters for 2026
1. NOCO Boost GB40 $99.95
The GB40 is the jump starter most people should buy. It is small enough for a glove box, it is close to impossible to connect wrong, and it has one of the biggest owner followings of any jump pack on Amazon, with well over 100,000 ratings.
- 1,000 peak amps, up to 20 jump starts per charge
- Spark-proof and reverse-polarity protection
- Built-in USB power bank and 100-lumen LED flashlight with SOS and strobe modes
- About 2.5 lb with an IP65 water and dust rating
- Recharges in about 3 hours
The catch: It is rated for gas engines up to 6.0 liters and diesels up to 3.0 liters. If you drive a full-size truck, a big V8 or a diesel pickup, step up to the GB70.
Best for: Most cars, small SUVs and anyone who wants the safest, simplest jump pack.
2. GOOLOO A3 (with air compressor) $69.99
The GOOLOO A3 puts a jump starter and a tire inflator in one box, for less money than the NOCO. Leave it in the trunk and it covers the two most common roadside problems: a flat battery and a low tire.
- 3,000 peak amps for engines up to 9.0L gas and 6.5L diesel
- Built-in 150 PSI inflator with presets for car, SUV, bike and ball, plus auto shut-off
- Doubles as a power bank and emergency light
- 10 safety protections including reverse polarity
- 18-month warranty
The catch: An all-in-one box is bulkier than a jump-only pack, and the inflator drains the same battery you need for jump starting. Recharge it after you top up your tires.
Best for: Drivers who want one box for dead batteries and low tires.
3. NOCO Boost HD GB70 $199.95
The GB70 is the big brother of the GB40, with double the power and the same foolproof safety. It is the one to buy if you drive something large, or you want a jump pack that can also rescue friends and family.
- 2,000 peak amps
- Designed for gas engines up to 8 liters and diesel engines up to 6 liters
- Same spark-proof, reverse-polarity protection as the GB40
- USB power bank and LED flashlight
- About 5 lb
The catch: At $199.95 it costs twice as much as the GB40, and it is twice as heavy. For a regular sedan or small SUV, it is more than you need.
Best for: Trucks, large SUVs, vans, boats and RVs.
4. Clore Jump-N-Carry JNC660 $179.51
The JNC660 is the old-school jump box that mechanics and tow drivers have used for years. Instead of a small lithium pack, it uses a large lead-acid battery and long, heavy cables, so it keeps delivering power through repeated starts.
- 1,700 peak amps from a 22Ah Clore Proformer battery
- 46-inch heavy-duty #2 AWG cables
- Built-in voltmeter shows the charge level
- 12V DC outlet to power accessories
- Almost 20,000 Amazon ratings
The catch: The lead-acid battery makes it far heavier and bigger than any lithium pack here, and it needs regular charging to stay ready. It is a garage tool, not a glove-box gadget.
Best for: Home garages, workshops and people who jump-start cars often.
Bonus: stop dead batteries before they happen
NOCO GENIUS10 smart charger $99.95
The best way to deal with a dead battery is to never get one. The GENIUS10 is a 10-amp smart charger and maintainer that keeps a parked car battery topped up, and it has more than 21,000 Amazon ratings.
- 10-amp charger for 6V and 12V batteries
- Can be left connected to maintain a battery during storage
- From NOCO, the same brand as the GB40 and GB70
The catch: It needs a wall outlet, so it cannot help you at the roadside. It is a garage companion to a jump starter, not a replacement.
Best for: Cars that sit for weeks, weekend cars, motorcycles and anyone who keeps getting dead batteries.
How to choose a portable jump starter
1. Match the power to your engine
Ignore the biggest number on the box and look at the engine size the maker says it can start. Peak amp ratings are not measured the same way by every brand, so engine size is the fairer comparison. As a rough guide, a small 4-cylinder car is fine with a compact pack like the GB40, while trucks, V8s and diesels need something like the GB70 or GOOLOO A3.
2. Lithium or lead-acid
Lithium packs like the NOCO and GOOLOO models are small and light and hold their charge for months. Lead-acid boxes like the Clore are heavy but rugged, and are built for repeated jumps in a workshop.
3. Safety features
Look for reverse-polarity protection and spark-proof clamps. They stop damage if you clip the clamps onto the wrong terminals, which is easy to do in the dark or the rain.
4. Extras that are actually useful
A USB power bank and a flashlight are standard now. A built-in air compressor, like the one on the GOOLOO A3, is the most useful extra because low tires are almost as common as flat batteries.
How to use a portable jump starter safely
- Turn the car off and switch off lights, heater and radio.
- Connect the red clamp to the positive (+) battery terminal.
- Connect the black clamp to the negative (−) terminal or a bare metal ground point on the engine.
- Turn on the jump starter, or press its boost button if the battery is completely dead.
- Start the car. If it does not start, wait a minute before trying again.
- Once the engine runs, remove the black clamp first, then the red one, and recharge the jump starter.
Always follow the instructions that come with your jump starter, because some models work slightly differently.
Frequently asked questions
What is the best portable jump starter?
For most people it is the NOCO Boost GB40 ($99.95). It starts gas engines up to 6.0 liters and diesels up to 3.0 liters, it is very hard to connect wrong, and it fits in a glove box.
How many amps do I need in a jump starter?
Go by engine size rather than amps. A compact pack rated for around 6 liters suits most cars. For trucks, V8s and diesels, pick one rated for 8 liters or more, such as the NOCO GB70 or GOOLOO A3.
Can I leave a jump starter in my car?
Yes, most lithium jump starters are made to live in the car. Extreme heat and cold shorten battery life, so check and recharge it every few months, and bring it inside in very hot weather if you can.
Is a jump starter better than jumper cables?
For most drivers, yes. Jumper cables need a second car, while a jump starter works on its own in a couple of minutes. Cables are still a cheap backup to keep in the trunk.
Are cheap jump starters safe?
Many are, but look for reverse-polarity and short-circuit protection, and buy from brands with lots of owner reviews. Every pick on this list has those protections.
Want to see gadgets like these in action? We cover car gadgets, camping tech and new vehicles on The Hidden Secrets YouTube channel, always with the real price and the catch.
Photos from Unsplash. Product specs come from each brand and their Amazon listings.
