What to look for
- Match the engine rating, not peak amps: makers list the gas and diesel engine sizes each model handles.
- Look for spark-proof clamps and reverse-polarity protection.
- Lithium packs hold charge for months; lead-acid boosters need regular top-ups.
- USB-C charging makes topping up easier.
How much to spend
Typical prices run from £79 to £149. Budget models cover the basics; spending more usually buys compact lithium jump starter with spark-proof clamps. Only pay for features you will use.
Who should skip what
- Skip the NOCO Boost Plus GB40 if you drive a big diesel truck; you need a larger model
- Skip the NOCO Boost X GBX45 if you drive a small car; the GB40 does the job for less
- Skip the GOOLOO GP4000 Jump Starter if you want the most trusted brand; peak-amp ratings differ between makers and are not directly comparable
Buying tips
Jump starters are frequent Prime Day and Black Friday deals, and they make good holiday gifts. Register NOCO products for warranty support and keep the receipt.
Our picks
See all our best portable jump starters in the uk for more options.
Recommended products
Best overallNOCO · Jump Starters
NOCO Boost Plus GB40
Compact and safe for most cars.
- Verdict
- Buy
- Best for
- Most cars
- Typical price
- £79–£99
Pros
- Spark-proof, reverse-polarity protection
- Small enough for a glove box
Cons
- Not for large diesels
Best for trucksNOCO · Jump Starters
NOCO Boost X GBX45
More power for V8s and SUVs.
- Verdict
- Buy
- Best for
- Trucks and bigger SUVs
- Typical price
- £119–£149
Pros
- More power than the GB40
- USB-C charging in and out
Cons
- Costs more
Best valueGOOLOO · Jump Starters
GOOLOO GP4000 Jump Starter
Lots of rated power for less.
- Verdict
- Buy
- Best for
- Value for big engines
- Typical price
- £79–£119
Pros
- Strong value
- Large built-in power bank
Cons
- Peak-amp claims are marketing numbers
Frequently asked questions
How many amps do I need?
Use the engine-size rating instead. Peak amps are measured differently by each maker. A GB40-class unit covers most four- and six-cylinder cars.
Can I leave a jump starter in a hot car?
Lithium packs dislike extreme heat. Check the storage range in the manual, and bring it inside during heat waves.
How often should I recharge it?
Every three to six months for lithium, or after each use.