GP4000 4000A Peak Jump Starter for All Gas & 10L Diesel

Such a great item, used several times and helped other motorists out with it. It is so powerful and easy to use.

Had one for 3 years just ordered another on offer , great for starting a van but also great for charging phones while away usually about 4/5 charges on my iPhone . Worth the money

Excellent bit of bit. Great value. Have used multiple times already, (low & dead batteries on mid sized diesel engines) and only had to recharge a couple of times. Great power from a small unit you can take whenever you need.

I bought the yellow jump starter three and a half years ago, and the reason I’m only writing my review now is that I wanted to see how well it performed over time. First of all, the quality is excellent, and in terms of performance, it really does work brilliantly. I bought this jump starter because my previous one had stopped working, mainly because I had not recharged it for about four months. However, with this one, even after I forgot to recharge it for almost a year, not only did it still work perfectly, but the battery level had not even dropped by one bar. It can also be used as a very powerful power bank, and the built-in torch gives off a very good and acceptable amount of light. Overall, I’m very pleased with it and would definitely recommend it.

Right, I’m going to try and answer what’s likely to be your first question: yes, it has enough grunt to start a dead battery, in cold, snowy conditions. In fact, this thing was better at starting my dead battery than jump leads attached to a mates car. I tried another brand on Amazon (who shall remain unshamed) and sent it back. The crap the supplier fed me was that the car battery needed to have a certain voltage for it to work. I put a tester on it. It had 8 volts. Needless to say I sent it back and got this one. Car fired, straight out the box. Simple to use, no buttons to press. It detects what your doing and delivers the charge. As with all of these, you can use the cars alternator to charge it back up, via the cigarette socket, or usb. It’s only downfall is the torch, but that’s not what you’re buying it for. I tried it on a car that’s been sitting since the outbreak of covid. Fired up, without zero effort, as if the car was parked the day before. This thing will get you out of trouble. Just don’t keep it in the boot, if you have an electronic latch!!

Brilliant bit of kit. Comes in a really neat and tidy case easy to take around. Used a lot so far and not had any trouble no sparking when connecting and really easy to use. Incredible power for such a small device, has started tractors over and over before needing re charging. Definitely easier than jump leads would be lost without one now.

Very good, has helped out several friends.

Writing a review after using this for over a year and recommending to someone else. Used frequently over the past year to jump start my Audi 3.2 petrol and always jumps it first time even on a completely dead battery. Case is great for keeping all the stuff together. Does take a while to charge but understandable for the size but does output enough power to charge devices like laptops etc albeit not as a super fast charger but good in a pinch.