Boost GB20: 500A UltraSafe Jump Starter Power Pack – 12V Car Battery Booster, Portable Power Bank & Jump Leads - For 4.0L Petrol Engines

small, light and compact. so easy to keep in your emergency bag in the back of your car. looks and feels like a well made quality product. came out of the box nearly fully charged so I have no idea how long ago it was made but by all accounts they hold a full charge for around 6months. charges with USB C and comes with a cable so can be charged in the car on a long journey. good value during the Black Friday deals. good peace of mind having it in the boot going into winter. cold weather kills batteries.

I literally never write reviews but this thing is so perfect and exactly what I was hoping it’d be that I had to give it 5 stars. I bought a Honda CBR600RR and as I park it on the street I decided to install a GPS tracker on it. Works great but if I don’t ride the bike for a few days the battery will be completely dead. (I’ve probably installed the tracker wrong, I have zero mechanical experience, which should be another plus point of how easy this battery pack is to use) Battery kinda dead: you hook it up to each terminal with the supplied clips, turns on instantly. Battery completely dead: there’s a safety feature that won’t let you press the boost if it can’t detect a battery, if you know it is hooked up you can just override that by holding the button and bam, works instantly. I’ve had to do both a couple times and honestly it’s so easy. One of the most spot on perfect products I’ve ever bought. I carry it in my backpack when I’m riding just in case I need it. It’s so easy to use. It takes me longer to undo the screw on my seat to access the battery than it does to turn the bike on with the battery pack. 5 stars but I’d give it more if I could. Also I charged it to full power when I got it as instructed and it’s started my bike multiple times so far and I’ve not had to recharge. There is a battery indicator so you’d know when it needs charged anyway.

GB 20 review. Bought this as I have been using a cheaper unbranded unit , which failed to charge. The GB 20 is a solid bit of kit , used on a 1100 cc motorcycle and 1ltr car. The only issue I have which I don't think people have mentioned is that the light is easy to knock on by mistake when it's in the case , in the glove box it was repeatedly getting switched on , I noticed on several occasions when driving home in the dark the touch on in the glove box. It's now in a hard case in the boot which avoids this happening. It's worth the money and always handy, even if you never use it .

As many other reviews have said, this is a well made, compact and lightweight booster pack that works extremely well. Honestly for the purpose of the occasional jump start it’s great and the connection cables and clips are very well made and the body of the pack itself seems extremely durable. The additional features of work and emergency SOS lights are also great. The only thing I cannot understand is why they used a micro USB plug for the charging input port. Micro USB is really out of date now, it can only be plugged in with the plug in one orientation, and in the dark it is hard to see this and they are known for being weak and easily damaged. On top of this, they have a very limited charging current which means the pack is slow to charge. Frankly this should have been fitted with a USB C socket to make connection easier, faster to charge and far less likely to get damaged. Otherwise, it’s a great device.

Tried this 3 times in a month and it is fantastic. Works straight away and it is so easy. From problem to fixed in less than 3 mins i.e. go indoors and get it , lift up the bonnet, attach it and turn it on then turn on the ignition.

good quality and holds charge

Bought this to keep in my motorbikes as I do European trips. It will easily start a dead batter on a gtr1400 and a pan st1300. Also tried it on my 2.8d motorhome totally dead battery and it started instantly. So it's a good buy. People who have said it didn't work after sitting for a year etc, remember this is also a battery so you need to pop in on charge for an hr every few months or it will reduce in power like any other battery operated gadget. Also stick in on a dead battery now and again so the cells have to work in it.

Bought this for motorcycle trip to Spain … have used this brand before, good quality

Excelente producto, me ha servido muchísimo. Fácil de usar. Gracias

Va bien para arrancar batería de moto BMW F 650 GS de 2012.

High quality product!

Prix correct fonctionne très bien

I bought the NOCO Boost GB20 as an emergency jump starter for my 2.5 L gasoline sedan, and it has exceeded my expectations. The unit is compact, easy to store in my trunk, and very straightforward to use. the clamps are easy to attach, and the LED indicators make operation simple. One cold Alberta morning when my car battery was dead, I connected the GB20, waited about 30 seconds, and my engine started immediately. It holds its charge well, even after sitting in the car for a couple of months, and also works as a USB power bank with a built-in flashlight, which is handy in emergencies. The safety features like spark-proof clamps and reverse-polarity protection give extra peace of mind. My only minor issues are that it is micro usb charging, and the 500 A rating may not be enough for larger engines or diesel vehicles. Overall, for compact cars or mid-sized sedans, this is a reliable, portable, and versatile jump starter that I would recommend for anyone looking for emergency car battery support.