Start your own car.
A jump starter that doesn't need a second car. A tyre inflator that doesn't need a forecourt. One 800g unit, charged from a USB cable, sat in your boot until the morning it earns its keep.
The two faults most likely to leave you standing next to your own car.
Most people own something for the first one. But jump leads need another car to turn up, and that is the part you cannot arrange at ten to eight on a Tuesday. For the second one, most boots have nothing at all.
Clamp it to the battery and turn the key. No second car, and nobody else's morning gets involved.
See how jump starting works
Screw the hose onto the valve, set the number off your door label, and let it run. Wherever the car happens to be parked.
See how inflation works
The Jolturn Jump Star
1600A of peak current for a flat battery. A 40 L/min compressor and a digital gauge for a soft tyre. Both in one 800g unit, in a case that sits under the parcel shelf instead of rolling around the boot.
Batteries rarely die without warning. We just don't recognise it.
A ten-minute run to the shops doesn't put back what starting the engine took out. Do that all week and the battery never gets properly full.
Cold slows the chemistry down and thickens the oil, so the battery has less to give at the moment the engine asks for more.
A modern car keeps drawing a small current while it's locked. Leave it standing through a holiday and it may not have enough left to turn over.
An interior light. A boot lid that didn't quite shut. One night is usually enough.
If any of that sounds familiar, a new battery only resets the clock — the same four things will drain that one too. What actually helps is being able to start the car regardless.
You won't think about it until one of these mornings.
None of these is an emergency. They are the ordinary version — and they are why this lives in the boot instead of a drawer.
Two cars? Keep one in each.
Moving one device between cars works right up until the morning the problem is in the other one.
A roadside product is only any use if it is in the car you are actually driving. Two cars on the drive, two units — that is the whole of the thinking.
What owners have used it for.
Battery had been struggling for a fortnight and finally gave up on the school run. Clamped it on, waited for the green indicator, and it turned over on the second attempt. I've since replaced the battery, but I wasn't stuck on a side road with two kids in the back, which is the whole point.
Ordered two because the review here said moving one between cars defeats the object, and that's exactly right. One lives in my boot, one in my husband's. Neither of us has had to think about it since, which is what I wanted.
Does both jobs properly and the build is better than the price suggests. The compressor is noisier than I'd assumed from the photos — not a problem on a driveway, but you notice it. Four stars for that rather than anything to do with how it works.
I'd been putting off doing my tyres for weeks because the pump at my local garage is always occupied. Did all four on the drive on a Sunday morning with a cup of tea. The display is genuinely easy to read, which matters when you're crouched by a wheel.
We didn't call it a 7-in-1, because that number tells you nothing about whether it will start your car.
Two of the functions are the reason to own it. It starts a car with a flat battery, and it puts air in a tyre. Everything else — the wireless pad, the USB ports, the work light, the warning light — is genuinely useful and none of it is why the thing earns its space in your boot.
So that is how the site is laid out. The two jobs first, in detail, with the numbers next to them. The extras afterwards, where they belong.
Ordering from a brand you've never heard of.
Fair. So here is what happens after you order, including the parts most sites leave out.
Every order comes with 30 days from delivery to be sure it is the right thing for your car. Backed by us, here in the UK.
Every unit is covered for a full year from the day it arrives. That sits on top of your statutory rights, not instead of them.
Every order is tracked UK delivery. Orders leave us within one to two working days and your tracking link is emailed the moment it's collected.
No subscriptions, no countdown timers, no "only 3 left" banner.
What people ask before they order.
The five that come up most. The rest are on the product page.
Do I need another car, or anything plugged in?
No. It carries its own lithium-ion battery, so it works on a driveway, a supermarket deck or a lay-by with nobody else involved. You charge it at home over a USB cable and it lives in the boot until the morning you need it.
Will it work with my car?
Almost certainly. It is built for 12V systems, which is every ordinary petrol and diesel car and van on UK roads, and 1600A of peak current covers petrol engines up to 6.0 litres and diesels up to 3.0. That is more headroom than most drivers will ever use.
The exception is 24V systems — lorries, some plant and older commercials. If you are not sure what you have, email us before you order and we will tell you either way.
Will it still be charged when I actually need it?
It holds charge well, but nothing holds it forever. Plug it in when the clocks change — twice a year — and it will be ready.
One of the reviews on this page makes the same point after two months of ignoring it, and we would rather you heard it from us before you ordered than from the boot of your car at seven in the morning.
How quickly will it arrive?
Orders leave us within one to two working days and travel tracked to your door. The tracking link is emailed the moment the parcel is collected, so you are never guessing where it is.
What cover comes with it?
Every order comes with 30 days from delivery to be sure it is the right thing for your car, and every unit is covered by our 12-month warranty from the day it arrives.
Both are backed by us here in the UK — one email address, read by a person — and both sit on top of your statutory rights.