

⚡ Jumpstart your freedom—power, safety, and light in one sleek pack!
The NOCO Boost GB40 is a compact, ultra-safe 1000A lithium jump starter designed for petrol engines up to 6.0L and diesel up to 3.0L. It offers up to 20 jump starts per charge, features a versatile 100-lumen LED flashlight with multiple modes, and doubles as a portable power bank capable of charging your devices multiple times. Engineered with spark-proof and reverse polarity protection, it guarantees secure, hassle-free use—making it an essential tool for every car owner who values peace of mind and on-the-go power.






















| ASIN | B015TKUPIC |
| Amperage | 1000 Amps |
| Batteries | Lithium Metal batteries required. (included) |
| Best Sellers Rank | 97 in Automotive ( See Top 100 in Automotive ) 3 in Car Battery Jump Starters |
| Brand | NOCO |
| Bulb type | LED |
| Customer Reviews | 4.5 4.5 out of 5 stars (119,800) |
| Date First Available | 1 Jan. 2010 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Exterior | Machined |
| Item Weight | 1.09 kg |
| Item model number | GB40 |
| Manufacturer | NOCO |
| Manufacturer part number | GB40 |
| Mirror adjustment | insect control |
| Model | GB40 |
| OEM Part Number | GB40 |
| Product Dimensions | 11.71 x 20.8 x 10.69 cm; 1.09 kg |
| Special Features | 100 Lumen LED Flashlight, 1000A 12V Portable Lithium Car Battery Jump Starter, Portable Power Bank for USB Devices, Reverse Polarity and Spark-Proof Protection |
G**Y
Peace of Mind if your Battery Flat
Good item to have if your car battery goes flat - I have used twice with no problems & it started my car first time - Booster is Portable & Easy to Store in car - Quick & Easy to use - Easy to recharge via USB in car or indoors (while Booster comes with a USB charge lead, make sure it fits your charging ports - I have older car & had to use different USB lead - But it worked fine - Newer cars be ok) - Item delivered quickly & safely packaged - Highly Recommend if you'd like peace of mind in the event of a flat battery...!
G**N
It starts engines and it’s handy for camping
I’ve had this for a couple of years now so have had chance to use it now and again. It started my wife’s (1.4L petrol) engine immediately when the car battery went flat, and again the next day, without a recharge in between. I had less luck trying to start the 2L petrol on a Mazda I had SORNed for two years during the pandemic - but it turned out the battery on that was completely gone (along with the bodywork of the car, sadly). So it definitely works for jump starts but it’s not going to provide you with a miracle. I have also taken this battery on a few camping trips. Its solid, rugged design makes it much better suited to tent life than are those slim portable batteries designed for business trips. It also has a decent torch built-in, and you can never have too many of them when you’re camping. I’d estimate it can recharge a modern iPhone from almost dead to full approx three times along with occasional use as a torch - so it can supply a family for a night or two, provided the kids are round the campfire not hiding in the tents on their iPads. You probably wouldn’t want to use it heavily for camping, as like any battery it may degrade to the point where the primary car start function fails, but it’s a nice bonus. I’m pleased with this purchase. It’s a handy device to keep in the boot of your car at all times and has the bonus capability of providing battery power outdoors. Even if you have other cars around, it’s easier to use this than traditional jump leads: you don’t need to move two cars close enough for the jump leads to reach, or open two car bonnets.
A**D
Flat battery = no problem. Works great on BMW
Very impressive. I bought this to replace another similar device that I previously purchased that just didn't have the power to start my 2 litre BMW car on a cold day. This product was the real deal. All you do is connect it to your car battery terminals and just start your car. My battery was draining flat on a daily basis but this product started my car in seconds every single time. It's well made and so easy to use and best of all, it can start an completely flat battery. Watch some of the videos on YouTube about this item and the tests it has been put through for further proof of just how good it is. Best tip is to use it when it is 100% charged.
M**N
Looks solid and well made, main cable - see review
Firstly I have been trying to find out how long the main booster cable are - they reach 23 inches (just) from tip of red croc clamp to tip of back croc clamp, by pulling them straight, only just ok for a Kuga PHEV under bonnet plus and minus posts. Secondly I didn’t realise that the connecting charge cable is USB C at both ends so you’ll need a USB C charger ( Anker £7.98) or a USB A to USB C connecting cable as most places I’ve stayed only have A outlets so C to C will be useless. Other than that, it appears well made and comes with a soft bag to keep it in, make sure you download the operating manual from Amazon as it’s not included in the box
D**R
Excellent device👍👍👍
Easy to charge, connect and starts flat battery immediately.
M**S
Works great. Easy to use. Good to have in the boot.
I have to say that it worked great. I was away for several weeks. The battery still had power but not enough to start my 2020 car with original battery. Not the first time this happened. I called AA but my coverage expired. It would cost £150 for a call out. Now I have a device that I can carry in the boot, clamp a few bits and be on my way if it happens again. It's not rocket science. Just look at the car manual and the device instructions.
M**K
Worked fine with 2.0 litre petrol
Please note: this review is based on about 1 week of ownership, so does not related to long term sturdiness or performance. Bought this after surveying all the various options and although there are some cheaper, it seemed like this combined the right capacity, additional safety features and clear design for the purpose. (Some cheaper items look like re-purposed phone battery banks, so I was sceptical how good they would be). My car battery suffered a fairly deep discharge during first covid lockdown and although usable, has never really been the same since. It's a heavy duty stop-start battery on a 2.0 Litre petrol. It's had to be charged a couple of times after standing and failing to start the car, and latterly has been showing signs of draining and failing to start the car after just a few days sitting not being used. So, i bought this as a "get of out jail" - especially if I drive somewhere and then the car won't start to come home. I've already had to use it, and I'm pleased to say that after connecting it up, waiting about 20 seconds to go round and get in the car and start it, it started first time. It would be useful if it displayed voltage when attached, then you could assess just how discharged the car battery is, but that's a minor niggle. For example, I don't know if my battery was just under 11v and the car electronics were deliberately preventing it starting, or whether it was much lower. It's really simple to use and the cables, though short, reach fine from the + terminal of the car battery to the -ve post on the engine wall - without anything dangling into the engine bay at risk of getting caught up. I was also impressed with how quickly it charged up. After receipt, and although showing empty, it only took a few hours plugged into a regular 2amp USB socket on my wall to get it fully charged. Then after starting the car a few days later, I simply plugged it into the USB in the car itself while driving and by my destination, it was fully charged up again ready to be used. (A bit "belt and braces" on my part, as after one start, the device was still showing green for the amount of charge left in it) It actually feels fairly sturdy and easy to grip and hold without slipping (more than can be said for some power bank chargers). Obviously I'm not going to deliberately drop it to see if it smashes open or not :) but it seems perfectly fit for purpose. All in all, i'm very pleased with it and the extra piece of mind it gives until I replace my car battery.
J**G
Väldigt robust, smidig och förtroendeingivande pryl. Testat 1 gång, bilen startade innan jag ens hunnit säga Engelbert Humperdinck.
B**N
Hoy lo he utilizado por primera vez, después de la compra y primera carga hace cuestión de 2 semanas, funciona de maravilla y arrancar el coche a la primera y en menos de 2-3 segundos batería sin energía nula, ni el centralizado funcionaba. Lo recomiendo tanto como usuario de calle como profesional.
A**M
Super sprzet
M**R
Kann mir nicht vorstellen wie man das negativ bewerten kann, habe ich mir ursprünglich für mein Motorrad für unterwegs gekauft, jedoch erstmals für meinen PKW benutzt. Um gleich Mal ein paar Bewertungen in Frage zu stellen ich fahre einen Cupra 150 PS Diesel und starten hat sofort funktioniert. So einfach zu benutzen, nur an Plus und Minus Pol an der Batterie anklemmen einschalten und Auto starten. Sofort angesprungen und fast nichts an Leistung dabei verloren. Ausschalten anklemmen fertig. Klare Kaufempfehlung, klein, handlich praktisch!!!
M**3
Propriétaire d'un Peugeot 5008, j'ai été confronté à une batterie un peu faible avec le mode "économie d'énergie" qui s'activait sans cesse. Le NOCO GB40 à réglé le problème en quelques secondes, seul bemol les cables sont assez courts . A voir au fils des ans sont efficacité déjà démarrer 3 véhicules sans rechargement Efficacité immédiate : Malgré le gabarit du véhicule et l'électronique embarquée très sensible de chez Peugeot, le booster lance le moteur instantanément sans aucun message d'erreur au tableau de bord. Petite précision : Sur le 5008, l'accès à la batterie peut être étroit. Les pinces NOCO sont fines mais très robustes, ce qui permet de bien mordre les cosses même quand l'espace est limité. Sérénité pour les vacances : Avec une voiture familiale souvent chargée avec les enfants, tomber en panne sur une aire d'autoroute est un cauchemar. Ce petit boîtier retire un gros stress. En résumé : Testé et approuvé C'est un outil de qualité semi-professionnelle qui rassure toute la famille. Je recommande à 100% . 💡 Le petit conseil en plus pour votre 5008 : Sur certains modèles de 5008, la borne négative (—) de la batterie est difficile d'accès car elle est reculée sous le pare-brise. N'oubliez pas que vous pouvez brancher la pince noire du NOCO sur une masse métallique du châssis (un gros boulon non peint sur le bloc moteur par exemple) cela à même fonctionné en rajoutant une rallonge car ma masse négative etait trop éloigné 👍
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