Best jump starters

Shortlist and buying guide · the ranked board is on its way

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What to look for

Peak amps should suit the engine size; a diesel needs more than a petrol.

Models worth comparing

From manufacturers' specifications and published UK reviews, read on 6 October 2026. Not tested by us. In no particular order: these are not ranked, and we do not say which is best until the customer ratings are in.

Budget

Halfords Advanced 2L Jump Starter Powerbank

Owners of small petrol or diesel cars who want a light, glovebox-sized pack for the occasional weak battery.

Very light at 300g, small enough for the glovebox
Safe Connect clamps protect against connecting the wrong way round
USB port to charge a phone, plus a built-in LED torch

Watch out for: It is only rated for engines up to 2 litres and Halfords says it will not start a battery that has dropped below 3V.

Current: 200A starting current
Engine rating: Petrol and diesel up to 2L
Weight: 300g
Start/stop batteries: Yes
Extras: USB output, LED torch

Sold by Halfords, not on Amazon.

Sources: Halfords product page

Mid-range

NOCO Boost Plus GB40

Most family cars, including larger petrol engines, where you want a compact, tough pack with mistake-proof clamps.

Rated for petrol engines up to 6 litres and diesels up to 3 litres
Spark-proof design with reverse-polarity protection
IP65 water-resistant casing and a seven-mode LED light

Watch out for: TechGearLab measured less usable battery capacity than claimed and found its USB charging ports slow.

Current: 1,000A peak
Engine rating: Petrol up to 6L, diesel up to 3L
Weight: 2.4lb (about 1.1kg)
Water resistance: IP65
Extras: USB power bank, LED light

Check price on Amazon

Sources: NOCO product page · TechGearLab review

Premium

Ring UltraBoost 2000A (RJS040)

Drivers of bigger cars and vans who want a powerful pack that also doubles as a fast-charging power bank for a laptop or phone.

Rated for petrol engines up to 8 litres and diesels up to 4 litres
Boost function to start completely flat batteries
16,000mAh battery with 65W USB-C fast charging and a colour status screen

Watch out for: Its 4-litre diesel rating may fall short for the largest diesel vans and 4x4s, where a heavier-duty pack is a safer bet.

Current: 2,000A peak, 400A starting
Engine rating: Petrol up to 8L, diesel up to 4L
Weight: 1.226kg
Battery capacity: 16,000mAh
Extras: 65W USB-C power delivery, LED light with SOS mode

Check price on Amazon

Sources: Ring Automotive product page

Pro

NOCO Boost Pro GB150

Owners of large diesel vans, motorhomes and boats, or anyone who regularly starts big engines, who need far more power than a glovebox pack.

Rated for petrol engines up to 9 litres and diesels up to 7 litres
Spark-proof clamps with reverse-polarity protection
IP65 water-resistant, over-moulded casing

Watch out for: At 7.5lb it is several times heavier and bulkier than compact packs, so it lives in the boot rather than the glovebox.

Current: 3,000A peak
Engine rating: Petrol up to 9L, diesel up to 7L
Weight: 7.5lb (about 3.4kg)
Water resistance: IP65
Extras: USB device charging, 12V output, seven-mode LED light

Check price on Amazon

Sources: NOCO product page

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