Best Jump Starters UK 2026: 7 Compared on Amazon UK

Last updated 20 October 2026. Prices and ratings checked on Amazon UK that day.

The best jump starter in the UK depends on your engine size, budget and the features you want. This guide compares seven portable lithium jump starters on Amazon UK, from £29.95 to £163.08, using each listing’s specifications and claims checked on 20 October 2026. A jump starter is a compact battery pack with clamps that can start a car with a flat battery without a second vehicle, and most of these also work as a power bank and torch.

Jump-starter listings are full of big numbers, such as peak amps, milliamp-hours and “up to X starts”, and not all of them mean what they appear to. This guide explains what matters when you choose one and flags where listings contradict themselves. It compares listings rather than giving safety or repair advice, so follow the maker’s instructions and your vehicle handbook whenever you use one. Prices and ratings change often, so confirm the current price on the product page.

Jump to: Quick picks · Comparison table · Buying guide · How we chose these jump starters · FAQs · Which to buy

Best jump starters UK 2026: quick picks

These labels describe what each jump starter is listed with. See how we chose these jump starters for the method.

• Lowest price here, 2,000A listed: AstroAI B8 (£29.95)
• Budget 2,000A model with 400-lumen light: GOOLOO GP2000 (£42.48)
• Most-rated listing, with the lowest peak amps here (1,000A): NOCO Boost GB40 (£86.15)
• Joint-highest rating (4.7), at under £90: TOPDON JS2000 Pro (£89.99)
• LCD display and long cables listed: Ring UltraBoost 1500A (£94.15)
• Largest battery and most jumps per charge listed: HULKMAN Alpha85 (£139.99)
• Fast USB-C recharging listed: NOCO Boost X GBX55 (£163.08)

Best jump starters compared: price, ratings and listed engine size (UK, 20 Oct 2026)

*The NOCO Boost GB40 page shows 4.5 from 127,285 ratings, and its comparison table lists separate counts for other NOCO models (GB20 13,123; GB50 16,763; GB70 30,282; GB150 12,778). Amazon can combine ratings across older versions of a product, so the count may include more than this exact model. Amps, engine sizes and batteries are manufacturer claims taken from each Amazon UK listing. Peak amps are claims about a brief peak, and different brands rate them differently, so they are not directly comparable.

How to choose a jump starter: UK buying guide

What size jump starter do I need for petrol and diesel?

Each listing says which engines it can start, usually as a maximum petrol and diesel size in litres. The range here runs from 6.0L petrol and 3.0L diesel (NOCO GB40 and Ring UltraBoost) up to 8.5L petrol and 6.0L diesel (HULKMAN Alpha85). Listings usually give a lower maximum for diesel than for petrol, because diesel engines generally need more cranking power, so check the diesel figure if you drive one. Check your engine size in the vehicle handbook or on the V5C (which gives cylinder capacity in cc, so 1,998cc is about 2.0L), and choose a unit whose listing covers it with some margin.

What do peak amps mean on a jump starter?

Listings quote “peak” amps, which is a brief maximum, and different brands measure it differently. Two jump starters with the same figure may not perform the same. Brands measure peak amps differently, so compare listed engine sizes and the maker’s own claims rather than the number alone. Some listings here also contradict themselves: the AstroAI B8 says 329g in its bullets but 650g in its specification table, and the TOPDON JS2000 Pro lists 2,500A in its bullets but 2,000A in its specification.

How many starts can a jump starter give per charge?

Battery capacity is quoted in milliamp-hours (mAh). The listings here range from 2,150mAh (NOCO GB40, per its specification table) to 20,000mAh (HULKMAN Alpha85). The “starts per charge” claims are also manufacturers’ figures: the NOCO GB40 listing says up to 20 starts on engines up to 6.0L petrol and 3.0L diesel, the TOPDON listing says 35, the HULKMAN listing says up to 60 and the NOCO GBX55 listing says up to 9. These are not directly comparable because each uses different test conditions, and a larger engine uses more of the battery per start.

Jump starter safety features: what the listings say

Most listings describe protections such as spark-proof clamps, reverse polarity protection and overcurrent or short-circuit protection. The AstroAI and GOOLOO listings each list 10 protections, the NOCO listings describe UltraSafe spark-proof and reverse polarity protection, and the Ring listing describes audible and visible warnings. These are manufacturer claims, and no feature replaces following the instructions: connect the clamps as the manual says, and read the listing’s own cautions before use. The AstroAI listing’s own cautions, for example, include removing the cables if the engine does not start within 5 seconds and not leaving the smart clamp plugged into the unit’s EC5 port, because the listing says it drains power.

How do you charge a jump starter, and how often?

A jump starter is only useful if it is charged when you need it. Check how it charges and how long it takes. The NOCO GBX55 listing says it recharges in 1.2 hours with a 60W USB-C Power Delivery charger that is not included, and the NOCO GB40 listing says its battery recharges in 3 hours. The GOOLOO listing claims a 24-month standby time. Follow the manual for how often to top it up.

Extras: power bank, torch and air compressor

Most of these double as a power bank and a torch. The GOOLOO lists a 400-lumen light, the TOPDON a 300-lumen flashlight, the NOCO GBX55 a 200-lumen torch and 60W USB-C output, and the HULKMAN a 12V/10A DC output, USB-A QC3.0 and Type-C PD18W outputs and five LED modes. Models with built-in tyre inflators are a separate category and are not compared here.

Warranty

Warranty terms listed here are 2 years for the AstroAI B8, 18 months for the GOOLOO, and 1 year for the NOCO, TOPDON JS2000 Pro and Ring models. The HULKMAN is the odd one out, as explained below. The HULKMAN listing’s warranty field says only “1”, but its box contents say a 2-year limited warranty, extended by 1 year on registration. Keep the receipt, and check the terms with the seller.

Vehicle handbook and newer vehicles

Check your vehicle handbook for guidance on jump-starting, especially for hybrid and electric vehicles and for cars with stop-start systems, because the manufacturer’s advice takes priority over a listing. The Ring UltraBoost listing says it suits vehicles including those with stop-start systems, and the other listings do not say.

AstroAI B8: cheapest jump starter here (£29.95)

Price: £29.95  |  Amazon rating: 4.5 from 2,203 ratings

The B8 is the cheapest jump starter in this guide. The listing describes a 12V unit for engines up to 7.0L petrol and 5.5L diesel, 8,000mAh, ten built-in protections, a clamp with indicator lights and an operating range of -20°C to 50°C. It lists a 3-mode LED light, a USB-A and USB-C cable, a storage bag and a 2-year manufacturer’s warranty. The listing says it weighs 329g, though the specification table says 650g, so check before relying on either. The 2,000A figure appears only in the specification table, not in the title or bullets, so check it before relying on it.

Check the AstroAI B8 on Amazon UK

GOOLOO GP2000: budget 2,000A model with a 400-lumen light

Price: £42.48  |  Amazon rating: 4.5 from 879 ratings

The GP2000 lists 2,000A for engines up to 8.0L gas and 6.0L diesel, a 10,000mAh battery, metal clamps, ten listed protections, two USB outputs and a 400-lumen torch. It lists 1.2 pounds and a 24-month standby time, with a cable, USB-C cable, storage bag and manual in the box. The listing gives an 18-month warranty. Its 879 ratings are fewer than the AstroAI, but it lists a larger engine capacity for £12.53 more.

Check the GOOLOO GP2000 on Amazon UK

NOCO Boost GB40: most-rated jump starter listing (1,000A listed)

Price: £86.15  |  Amazon rating: 4.5 from 127,285 ratings (Amazon can combine ratings across older versions)

The GB40 lists a lower peak figure than the cheaper models here, 1,000A for engines up to 6.0L petrol and 3.0L diesel, and up to 20 starts per charge. The listing describes UltraSafe spark-proof and reverse polarity protection, a 100-lumen torch with seven modes, a USB power bank that recharges in 3 hours, an IP65-rated housing and a weight of 1.1kg. It comes with clamps, a USB-C cable and a storage bag, and a 1-year warranty. Its rating count is by far the largest here, but Amazon can combine ratings across older versions of a product, so it may include more than this exact model. Check the 3.0L diesel figure against your own engine.

Check the NOCO Boost GB40 on Amazon UK

TOPDON JS2000 Pro: joint-highest rated jump starter (4.7)

Price: £89.99  |  Amazon rating: 4.7 from 344 ratings

The JS2000 Pro lists 2,500 peak amps for engines up to 8L gas and 6L diesel, a 16,000mAh battery, up to 35 jump starts per charge and a Boost function the listing says can revive a dead battery. It describes Stop Spark sensors that pause the unit if it is used four times in 10 minutes, a USB Quick Charge port and a 300-lumen flashlight. It weighs 1.46kg per the listing and has a 1-year warranty. The specification table lists 2,000A, so the 2,500A claim in the bullets is not matched everywhere. A second TOPDON JS2000 Pro listing on Amazon UK is priced at £99.99, so check you are looking at the version you want.

Check the TOPDON JS2000 Pro on Amazon UK

Ring UltraBoost 1500A: jump starter with LCD screen and long cables

Price: £94.15  |  Amazon rating: 4.6 from 122 ratings

The listing describes Ring Automotive as a UK business serving motorists. It describes a 1,500A unit for engines up to 6L petrol and 3L diesel, a 12,000mAh battery, an LCD screen showing battery status and charge level, long clamp cables, BOOST technology for fully depleted batteries, and audible and visible warnings for reverse polarity. It says it suits vehicles including those with stop-start systems. It weighs 1kg and carries a 1-year warranty. The listing calls the clamps crocodile clips. Its 4.6 rating comes from 122 ratings, a small sample.

Check the Ring UltraBoost 1500A on Amazon UK

HULKMAN Alpha85: biggest battery listed (20,000mAh)

Price: £139.99  |  Amazon rating: 4.7 from 12,055 ratings

The Alpha85 has the biggest battery here, 20,000mAh, and the biggest listed jump count, up to 60 starts per charge, for engines up to 8.5L gas and 6.0L diesel. The listing describes a 3.3-inch screen, built-in smart clamps, an IP65 shell, ten protections, a 12V/10A DC output, USB-A QC3.0 and Type-C PD18W outputs and five LED modes. It weighs 2.05kg per the listing, the heaviest here, and the listing’s warranty field says only “1”, though its box contents mention a 2-year limited warranty extended by 1 year on registration. At 12,055 ratings it has the second-highest count here after the NOCO GB40, with a 4.7 average.

Check the HULKMAN Alpha85 on Amazon UK

NOCO Boost X GBX55: fast USB-C recharging listed

Price: £163.08  |  Amazon rating: 4.4 from 4,290 ratings

The GBX55 is the most expensive jump starter here. The listing describes 1,750A for petrol engines up to 7.5L and diesel up to 5.0L, UltraSafe 2.0 spark-proof and reverse polarity protection, a 60-second timer, up to 9 starts per charge and recharging in 1.2 hours with a 60W USB-C charger (not included). It also lists a 200-lumen torch, 60W USB-C power output and a weight of 1.53kg, with a 1-year limited warranty. At up to 9 starts per charge it lists fewer than the NOCO GB40 (20), TOPDON (35) and HULKMAN (60), while the AstroAI, GOOLOO and Ring listings give no figure. Its 4.4 is the lowest rating of the seven, and what the listing offers over the cheaper models is fast USB-C recharging and 60W output.

Check the NOCO Boost X GBX55 on Amazon UK

How we chose these jump starters (and what this guide is based on)

This is a research-based shortlist. Everything above comes from Amazon UK listings and manufacturer claims on those pages, checked on 20 October 2026, apart from the general buying advice and our own comparisons of the listed figures.

We started with Amazon UK, where most British buyers will shop, and looked at portable 12V lithium jump starters with an established rating count or a known brand. We left out models with built-in tyre inflators, jump leads, battery chargers and listings that were too sparse to compare. We compared each listing’s stated specifications, the manufacturer’s own claims on that page, and the customer rating and number of ratings shown at the time, and included a spread of price points. We limited the shortlist to listings with established rating counts or recognised brands. Several specification tables contradict the listing text, which we have flagged where it matters.

Ratings also move over time, and Amazon can share them across versions of a product. We will update this guide when prices, ratings or availability change.

Jump starter FAQs

What is the best jump starter in the UK?

It depends on your engine and budget. On Amazon UK on 20 October 2026, the AstroAI B8 was the lowest-priced model here at £29.95, the HULKMAN Alpha85 had the largest battery and the most listed jumps per charge at £139.99, and the TOPDON JS2000 Pro and HULKMAN Alpha85 shared the highest rating, 4.7, at £89.99 and £139.99.

How do I choose a jump starter for my car?

Check your engine size and fuel type in the vehicle handbook, then choose a jump starter whose listing covers that engine. Treat peak amps as a rough guide, and check the listed engine size rather than the amps alone.

What size jump starter do I need for a diesel car?

Many listings cover diesel, but with a lower maximum engine size than for petrol, such as 3.0L diesel for the NOCO GB40 against 6.0L petrol. On 20 October 2026 the Amazon UK listings for the GOOLOO GP2000, TOPDON JS2000 Pro and HULKMAN Alpha85 listed up to 6.0L diesel, and the NOCO Boost GB40 and Ring UltraBoost 1500A listed 3L diesel. Check the diesel figure against your engine.

How many times can a jump starter start a car?

Listings claim between 9 and 60 starts per charge, but the claims use different test conditions, and a bigger engine uses more of the battery. Treat them as a rough guide.

How do I charge a jump starter?

Follow the manual. The NOCO Boost X GBX55 listing says it recharges in 1.2 hours with a 60W USB-C Power Delivery charger (not included), and the NOCO Boost GB40 listing says 3 hours. Charging methods and times vary by model.

How long does a jump starter last?

It depends on the model and how it is stored and used. The GOOLOO GP2000 listing claims a 24-month standby time, and the warranties on the listings here run from 1 to 2 years. Check the maker’s instructions for how often to recharge.

How often should I charge a jump starter?

Follow the instructions in the manual. The GOOLOO listing claims a 24-month standby time, but it is sensible to check the charge level regularly and top it up as the maker advises.

Jump starter vs jump leads: which is better?

Jump leads need a second vehicle with a working battery, while a jump starter is a self-contained battery pack with clamps. A jump starter generally costs more than basic leads and needs recharging, whereas leads have no battery to keep charged. Follow the manufacturer’s instructions and your vehicle handbook for either.

Can I use a jump starter on a hybrid or electric car?

Check the vehicle handbook before using any jump starter, because manufacturers give specific guidance for hybrid and electric vehicles, and the listings here do not cover it.

Are the prices on this page up to date?

They were accurate on Amazon UK on 20 October 2026. Prices change frequently, particularly around sale events, so use the links to see the current price.

Which is the best jump starter to buy in the UK?

If you want the lowest price, the AstroAI B8 and the GOOLOO GP2000 are the cheapest here, and the GOOLOO lists a bigger engine capacity. The NOCO Boost GB40 is the lowest-powered model here (1,000A) and shows the most ratings, but its listed engine range (6.0L petrol and 3.0L diesel, the same as the Ring) is the smallest. The TOPDON JS2000 Pro shares the highest rating (4.7, on 344 ratings) and is the cheaper of the two 4.7 models, the Ring UltraBoost lists an LCD and long cables, the HULKMAN Alpha85 lists the biggest battery and the NOCO Boost X GBX55 lists fast USB-C recharging at the top of the price range. Check the listed engine size against your own vehicle, and the vehicle handbook, before you order.

Affiliate disclosure: The Motoring World may earn a commission if you buy through links to Amazon UK, at no extra cost to you. We link to Amazon UK because most readers shop there; prices may differ elsewhere.

Prices, ratings and specifications were taken from Amazon UK listings on 20 October 2026 and may have changed.