Boost GB40: 1000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables - for 6.0L Gas and 3.0L Diesel Engines

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.

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...!

Excellent bit of kit

I bought this after quite a bit of research and I am very pleased with it. I used it to start my Hybrid Toyota Yaris and it provided the power instantly. Great. It also appears to be very strongly built and is easy to use. My only issue is that for Hybrid vehicle starting the positive connector attaches to a specific connector in a fuse box right at one side of the engine bay, and the negative attachment needs to go to the engine or other connected component. Even in the Yaris, the engine is very marginally too far away. I DID find a sopt (obvioulsy as it worked a treat) but the cables are designed o fit across a battery terminal and not across an engine bay. There aren't any NOCO extension leads either, so in my other car I guess I'll just have to extend the earth from the GB40 to the car via another charger cable clamped together. Hence 4 stars.

This really saves a call out, time and probably money. I just had to use this on a Rav4 hybrid. Worked a little bit differently, in that there is no negative battery terminal (not visible or reachable anyway) and so in that case you connect the black cable to a bolt to earth it. Car instantly came to life. Great tool to have in your car, small, light and compact too. But depending on your car... don't leave it in the boot storage like I did, because the boot door wouldn't open, and I had to crawl over the back seat and do all kinds of yoga to retrieve it. Leaving it under the seat from now on!

Beautiful works perfect thank you

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.

​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 👍

Ottimo avviatore! Il NOCO GB40 è compatto ma tira fuori una potenza incredibile: avvia l’auto in pochi secondi. Sicurezza al top, non fa scintille e si collega senza paura. La batteria dura tantissimo e si ricarica via USB. Perfetto da tenere sempre in macchina!

Doet gewoon wat het zegt

يؤدي عمله بشكل جيد

bra produkt, räddade, inte bara mig, några gånger i vintras.