Cold mornings finish off tired car batteries — a battery that turned the engine over fine in October can leave you with nothing but a click on the first hard frost. A lithium jump starter fixes that on your own, without flagging down a stranger or waiting on a breakdown truck: you clamp it on, start the car, and get moving. For anyone who drives through a UK winter, especially in rural or remote spots, it is one of the most quietly reassuring things you can keep in the boot.
The main decision is engine size versus bulk. A 1000A pack like the NOCO GB40 covers most petrol cars and smaller diesels and stays glovebox-small; a 2000A unit like the GB70 is what you want for a big diesel, a van or a 4x4, at the cost of size and price. Budget packs from GOOLOO and TOPDON do the same core job and throw in a USB output and torch, which makes them a sensible first buy for a family car. And we include a set of old-fashioned booster cables too: they need no charging and never go flat, so long as there's a second vehicle to hand.
All five are on Amazon UK and were re-checked as buyable for this list. Whichever you pick, charge a lithium pack before winter and top it up every few months — a jump starter that's flat in the boot is no use at 7am in the cold. For how output ratings, safety clamps and battery chemistry actually work, read our car jump starters buying guide.
A portable jump starter gets a flat car battery running again without needing a second car or a roadside callout — pocket-sized insurance against a cold-morning no-start.
Larger or diesel engines need higher peak amperage to turn over. Check the manufacturer's engine size guidance rather than assuming any unit will do.
Built-in protection prevents damage or danger if the clamps are connected the wrong way round — an important safety feature, especially for less experienced users.
A unit that also charges phones and includes an LED torch is genuinely more useful day to day, not just in a car-won't-start emergency.
A jump starter self-discharges over months. Get into a habit of topping it up periodically so it's actually ready when needed.
Follow the manual precisely — connect positive first, then negative to an earth point, and reverse the order when disconnecting, to avoid sparks near the battery.
A market-leading UltraSafe lithium jump starter with reverse-polarity and spark protection, plus USB power bank and torch functions — trusted by breakdown services and drivers alike.
A compact lithium jump pack that starts a flat car battery without a second vehicle or a good Samaritan. Keep one charged in the boot for winter mornings and roadside breakdowns, and it doubles as a USB power bank and emergency torch. Sensible insurance for anyone who drives in cold or remote parts of the UK.
A portable 12V lithium jump starter that can restart a flat car battery without a second vehicle or a set of leads to another driver. It doubles as a power bank for charging a phone, which makes it a useful thing to keep in the boot for winter breakdowns when a dead battery is most likely.
A 2000A lithium jump starter that restarts a flat 12V battery without a second vehicle, rated for petrol engines up to 8.0L and diesels up to 6.0L. It doubles as a USB power bank and has a built-in torch, so it earns its place in a winter car kit when cold mornings finish off a tired battery. Bulkier and pricier than a bargain pack, but built to a higher safety and output standard.
Traditional jump leads for when a flat battery leaves you stranded and there's another vehicle to hand. A cheap, compact backup to a battery jump pack that keeps working even when a powered starter is out of charge.
The main route into storm, power cut, warmth, water and car-kit guidance.
A practical first plan for lights, phones, food, warmth and checking on people.
Buyable kit picks for the most common UK storm and outage problems.
A printable checklist for cold weather, outages, travel disruption and home prep.