NOCOBoost Sport GB20 500A UltraSafe Car Jump Starter, Jump Starter Power Pack, 12V Battery Booster, Portable Powerbank Charger, and Jump Leads for up to 4.0-Liter Petrol Engines

Works a treat. Have used a couple of times to jump start a flat battery. Definitely handy to have in the boot.

Not actually used on my own vehicle 🤞but used a couple of times now by friends and works great. Still has plenty of charge and easy to keep stored in the boot. Definitely recommend as park of your breakdown kit.

Bought this for my Motorcycle. After overnight frost had drained the battery.Easy to use, quick and great quality. Happily recommend to anyone

It seems to be a universal rule that cars only ever break down when it is difficult to get anything done about it. I needed to use mine for a short trip on Christmas day. After clearing ice off the windows, I got in, turned the ignition and nothing but a clicking noise. No one available to help, so I was unable to use the car that day. Thinking on the problem, I realised that for the past few weeks I had been using the car for work with the lights, heaters, dashcam, satnav and radio all on, followed by 5 days of only using the car twice for 1.5 mile trips to the local shop.Having intended to buy one of these boosters a while back for emergencies, I ordered a NOCO Boost Sport GB20 from Amazon (the cheapest NOCO model because my car is only a 1.2 litre, so well within the specified "up to 4 litre" range.The product arrived promptly, but unfortunately comes with only about 1/4 charge. The manual says to fully charge before use, which I estimated at 3 hours given the USB charger I was using.After the 3 hours were up, I clipped the leads to the battery, turned on the unit, gave it 30 seconds, crossed my fingers and then turned the ignition - it started first time. I ran the engine for 15 minutes and will try the car again in the morning when I can give it a good run without needing the headlights on. If it doesn't start again then I have the booster ready in order to get it started and get to a garage for a new battery.I really wish that I had bought one of these a year ago (as I was going to do after helping a work colleague jump start his car). From now on, this is going in the boot of the car and coming out every weekend for a recharge, just because it will give me peace of mind.Compact and very easy to use. Really pleased with this purchase.

I have a car with an intermittent fault which means I'm never sure whether the battery will be charged or flat. Most of the time it's fine but, every now and again, I find that it's just dead.An auto electrician has said that I need to leave the car with him for about a week so that he can test it every day. Presently, I can't do without the car for a week. He's done a couple of checks but could find no fault.That's why I carry one of these. The previous one got hot in the car (remember the heatwave?) and swelled so I had to dispose of it.I've had this a couple of months without needing it but was very glad I had it when I went to the car to find it had no power. The central door locking didn't work, the dash lights didn't come on and everything was dead.Luckily, I had connected this unit to the mains for about six hours when it arrived to fully charge it.I connected up the booster, remembering to switch it on, turned the ignition key and the car started first time. I was impressed.Even more so when, after a short drive to get fuel, I found that the car still didn't have enough energy in the battery to start. I connected the unit up and it started easily for the second time. My car has a 1.4 litre petrol engine.I checked the remaining power on the colored LED display and the green was still lit, indicating there was more power immediately available if I needed it.It was a little costly but very effective and gives me complete peace of mind. Overall, I'm happy with my purchase.

A brilliant piece of kit. Very easy to charge, store and use.

My car is less than 3 years old - 3 weeks ago, the battery failed and I had to call the AA (being an automatic, getting someone to help me bump start it wasn't an option) as I was not at home at the time. Having then done a 2 or 3 longer journeys, it was a bit of a surprise to me when it failed again last week. I felt a bit off about calling out the AA so soon after my previous breakdown, so decided to get the jump leads out and deal with it myself. Except my jump leads seem to have gone walkabout.So that decided me on getting a battery zapper. However, many of the products I looked at had mediocre reviews to say the least. As a person with disabilities, I need a product that I can a) carry without too much difficulty and b) won't let me down when I actually need to use it. So, I decided to spend a bit more than I'd originally budgeted to buy something that didn't weigh almost as much as a car battery itself and had better reviews.The zapper duly arrived 2 days later and having charged it (it took about 3 hours to charge fully from my laptop) took it out a couple of days later to get the car started. And it took me longer to read the instructions than it did to get the car started. The crocodile clips are seriously sturdy and it took me a bit of time to actually get them attached to the battery at the relevant point, but my car started in 30 seconds or so. And I'd barely touched the charge in the power pack.The pack itself has some useful functions and I was waiting on a power cut over the weekend so I could test them out. The USB port for charging other electrical items isn't essential for my needs, but it could come in handy. The torch on it is seriously bright, there would be no chance of a person not being able to see using it. The charging cables are short, but it turns out that they're long enough to do the job required.And the pack doesn't weigh so much that I need to use 2 hands to lift it - something that has to be taken into consideration when one isn't very strong.The only thing that lets it down is the nasty nylon storage bag that comes with it. However, I'm sure I can make a better cover for it, in time