Top 6 compared
The best car jump starters
A flat battery sorted on your own, with no waiting for a neighbour with jump leads.
39 checked · 6 made the cut
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The top 6 at a glance
A jump starter is a lithium battery pack with its own clamps, so a car with a flat battery can be started on its own. Packs are rated by engine size and fuel: some cover a family petrol car, others a van or a big diesel. They double as a power bank for phones, with a torch for a roadside stop in the dark.
Peak amps vary wildly between brands and say little on their own; the maker’s ratings for petrol and diesel engine sizes are the figures to compare, and the table shows them. A pack is only any use charged and close at hand, so recharge it every few months and keep it in the car.
What matters
- Spark-proof clamps with reverse-polarity protection are a must.
- Starts per charge, so one top-up covers more than one rescue.
- A working temperature range that goes well below freezing.
- A water-resistant case, for the roadside in the rain.
#1AstroAI B8 Car Jump Starter
£20–£30
- Light at 329g
- Over-temperature and overcharge protection
- Clamp light confirms connection
Rated for 7-litre petrol and 5.5-litre diesel engines, this 329g pack carries ten safety protections, from reverse polarity to over-temperature, and charges a phone too. The four packs that score higher are built for 8- to 10-litre petrol engines, far more than a family car needs, and this one outsells all of them.
What owners say: Cars start first time with it and it works straight out of the box, owners report, and it’s compact enough to keep with you for emergencies; the complaint is that some will only charge to 50%.
A closer look: Push the smart clamps fully into the pack before connecting to the battery, red clamp first, and wait for the green light on the clamp before turning the key. It’s light enough for a motorbike pannier or a caravan locker.
Best for: Ten built-in protections
- Engines up to
- 7.0L petrol, 5.5L diesel
- Peak current
- 2000A
- Power bank
- Yes
- Torch
- Yes
- Spark-proof clamps
- Yes
- Extras
- Works -20°C to 50°C
#2TREKURE TK60 6000A Jump Starter Power Pack
£30–£50
- Rated 9L petrol, 6.5L diesel
- Magnetic LED panel light
- Light at 0.4kg
A 0.4kg pack rated for petrol engines up to 9 litres and diesels up to 6.5, with a magnetic full-panel LED light that sticks to the bonnet and lights up the battery while both hands work the clamps.
What owners say: Owners report cars starting without fuss and find it simple to use and compact enough to live in the glovebox, with sturdy clamps and a very bright light.
A closer look: The light has steady, strobe, red strobe and SOS modes, so set to red strobe it doubles as a warning light behind a broken-down car. Hook the silicone carry loop over something in the boot so the pack stays put instead of sliding about on every corner.
Best for: Hands-free work light
- Engines up to
- 9.0L petrol, 6.5L diesel
- Peak current
- 6000A
- Power bank
- Yes
- Torch
- Magnetic LED panel
- Spark-proof clamps
- –
- Extras
- 0.4kg, 2-year warranty
#3NOCO Boost HD GB70 Jump Starter (2000A)
£150–£200
- 12V outlet for tyre inflators
- 40 starts per charge
- IP65 water-resistant case
- Heavy at 1.9kg
The bigger brother of the GB40, rated for 8-litre petrol and 6-litre diesel engines with up to 40 starts on a charge, so a 4x4 or a van is no trouble. A 12V outlet runs a tyre inflator, and the 400-lumen torch is four times as bright as the GB40’s.
What owners say: Cars and vans start every time with it, owners say, and it packs a lot of power into a small case and is easy to use, though opinions are mixed on how well it holds its charge.
A closer look: At 1.9kg it lives in the boot rather than the glovebox. The XGC adapters in the box connect the 12V outlet to an inflator or a cool box, and it recharges in about three hours from the car’s own 12V socket on a long drive.
Best for: Powering 12V gadgets
- Engines up to
- 8.0L petrol, 6.0L diesel
- Peak current
- 2000A
- Power bank
- USB and 12V
- Torch
- 400 lumens
- Spark-proof clamps
- Yes
- Extras
- IP65, 40 starts per charge
#4Povasee 6000A Jump Starter Power Pack
£50–£75
- Rated 10L petrol, 8L diesel
- 40 starts per charge
- Works down to -30°C
Rated for petrol engines up to 10 litres, the biggest on this list, and diesels up to 8, with up to 40 starts on a charge. Its 59.2Wh battery and two USB ports make it a handy power bank on a camping weekend as well.
What owners say: Owners say it fires cars up quickly and is compact and easy to use, though some report it losing its charge within a few days.
A closer look: Press the RST button on the clamp adapter if the car battery is so flat that the pack won’t detect it. The two USB ports charge two phones at once, and the hard case keeps the pack and leads together in the boot.
Best for: Big petrol engines
- Engines up to
- 10L petrol, 8L diesel
- Peak current
- 6000A
- Power bank
- 59.2Wh, 2 USB
- Torch
- Yes
- Spark-proof clamps
- Yes
- Extras
- 40 starts, carry case
#5TREKURE TK10 5000A Jump Starter Power Pack
£30–£50
- Rated 9L petrol, 8.5L diesel
- Big 16,800mAh power bank
- Waterproof, dustproof shell
A phone-sized jump pack with a big 16,800mAh battery, so it keeps phones charged on road trips as well as starting the car. It’s rated for petrol engines up to 9 litres and diesels up to 8.5, and at about 300g it slips into a door pocket.
What owners say: Owners call it easy to use and handy to store in the glovebox or boot, praise its power, and like the carry bag that comes with it.
A closer look: The maker calls it airplane-friendly as a power bank, but check your airline’s rules on lithium batteries before packing it in hand luggage. It also says the pack needs at least half its charge for a reliable jump, so check the indicator before relying on it at the roadside.
Best for: Big diesels
- Engines up to
- 9.0L petrol, 8.5L diesel
- Peak current
- 5000A
- Power bank
- 16,800mAh
- Torch
- 300 lumens
- Spark-proof clamps
- –
- Extras
- 300g
#6NOCO Boost GB40 Jump Starter (1000A)
£75–£100
- IP65 water-resistant case
- Diesels to 3.0 litres only
NOCO dates back to 1914 in Cleveland, Ohio, and the GB40 is its glovebox-sized pack for petrol cars up to 6 litres: spark-proof clamps, up to 20 starts per charge and an IP65 case that shrugs off rain.
What owners say: Owners find it easier than jump leads and small enough to sit under a seat or in the glovebox, though some say theirs failed to work or wouldn’t hold a charge.
A closer look: Keep it in the microfibre storage bag from the box, in the glovebox rather than the boot, so it’s to hand even if the boot won’t open on a flat battery. Once the engine is running, unclip black first, then red, and drive for a while so the car’s own battery gets some charge back.
Best for: Keeping out rain and dust
- Engines up to
- 6.0L petrol, 3.0L diesel
- Peak current
- 1000A
- Power bank
- Yes
- Torch
- 100 lumens
- Spark-proof clamps
- Yes
- Extras
- IP65, 20 starts per charge
Side by side
How they compare
Swipe sideways or rotate device to see all 6.
| Feature | #1AstroAI B8 | #2TREKURE TK60 6000A | #3NOCO GB70 | #4Povasee 6000A | #5TREKURE TK10 5000A | #6NOCO GB40 |
|---|---|---|---|---|---|---|
| Best overall | Best premium | |||||
| Picked Rating | 8.9 | 9.5 | 9.1 | 9.1 | 9.0 | 8.8 |
| Price | £20–£30 | £30–£50 | £150–£200 | £50–£75 | £30–£50 | £75–£100 |
| Engines up to | 7.0L petrol, 5.5L diesel | 9.0L petrol, 6.5L diesel | 8.0L petrol, 6.0L diesel | 10L petrol, 8L diesel | 9.0L petrol, 8.5L diesel | 6.0L petrol, 3.0L diesel |
| Peak current | 2000A | 6000A | 2000A | 6000A | 5000A | 1000A |
| Power bank | Yes | Yes | USB and 12V | 59.2Wh, 2 USB | 16,800mAh | Yes |
| Torch | Yes | Magnetic LED panel | 400 lumens | Yes | 300 lumens | 100 lumens |
| Spark-proof clamps | Yes | – | Yes | Yes | – | Yes |
| Extras | Works -20°C to 50°C | 0.4kg, 2-year warranty | IP65, 40 starts per charge | 40 starts, carry case | 300g | IP65, 20 starts per charge |
| Best for | Ten built-in protections | Hands-free work light | Powering 12V gadgets | Big petrol engines | Big diesels | Keeping out rain and dust |
| Buy now | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
How we checked these
How 39 became 6
We found 39 car jump starter listings. One was the same pack again in another colour, and 16 were rated too low and/or had too few ratings or sales to compete. That left 22, which we narrowed down step by step:
- Ratings, reviews and salesFor the 22, we then checked the ratings and reviews further, and how many people buy each one. Owners talked most about how well they hold a charge, then how long they last. After these checks, we dropped 10 more, one of them because some owners said it melted.12 left
- Features weighed upThe 12 left were compared on the engine sizes they can start, peak current, whether they have a power bank and a torch, spark-proof clamps and extras. Once everything was weighed up together, we dropped six more. The #1 has every feature you’d expect from a jump starter.6 made the cut
- Value for moneyEvery jump starter here is worth what it costs. A dearer one is only here if it gives you more.
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