

⚡ Power up your peace of mind—jumpstart life’s unexpected moments!
The NOCO Boost GB40 is a compact 1000-amp lithium jump starter designed for 12V vehicles with engines up to 6.0L gas or 3.0L diesel. It delivers up to 20 jump starts per charge, features patented spark-proof and reverse polarity protection, and doubles as a portable USB-C power bank. Equipped with a 100-lumen LED flashlight with multiple modes, it’s built tough with an IP65-rated rugged housing, making it an essential, reliable tool for roadside emergencies and everyday preparedness.






















| ASIN | B015TKUPIC |
| Amperage | 1000 Amps |
| Automotive Fit Type | Universal Fit |
| Batteries | Lithium Metal batteries required. (included) |
| Best Sellers Rank | #3 in Automotive ( See Top 100 in Automotive ) #1 in Jump Starters |
| Brand | NOCO |
| Bulb Type | LED |
| Customer Reviews | 4.6 4.6 out of 5 stars (122,964) |
| Date First Available | January 1, 2010 |
| Exterior | Machined |
| Global Trade Identification Number | 00046221150025 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.4 pounds |
| Item model number | GB40 |
| Manufacturer | NOCO |
| Manufacturer Part Number | GB40 |
| Mirror Adjustment | insect control |
| Model | GB40 |
| OEM Part Number | GB40 |
| Peak Output Current | 1000 Amps |
| Product Dimensions | 4.61"D x 8.19"W x 4.21"H |
| 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 |
| Specification Met | UL |
| UPC | 046221150025 |
G**D
This Item Is A MUST HAVE!
This product truly makes jumper cables obsolete. I purchased this 1 1/2 years ago, charged it, and then stored it in my Honda Accord's trunk. It was not until yesterday, 1 1/2 years later, that I needed it to try to start my car's depleted battery (due the cabin light having been left on overnight). I could see that the NOCO Boost still retained 50% of its charge despite having sat in my trunk for 1 1/2 years. I firmly connected it to my car's battery and immediately my car's dashboard came to life. I waited less than one minute before twisting the ignition key, and on the 2nd attempt (within only seconds of my 1st attempt) - my engine started up. In the past, I have hated to beg strangers to give me a jump, even though I have always carried jumper cables. And AAA has been a nightmare, because whenever have I needed a jump in the past (before buyng the NOCO Boost) - I have had to wait close to 3 hours for AAA to come to me. Then I found out about the NOCO Boost from someone working for AAA who used it to jump an old car of mine. I purchased one immediately. This product is so small, so convenient to use, and mine has proved itself to be so reliable, that I consider it to be a MUST HAVE ! It is sad that a couple reviewers have stated that their product failed to work for them. But with an overall composite star rating of 4.6, clearly almost everyone experiences their product to be reliable. This product should be charged before storing it away. I do not remember whether mine came with a charge.
K**M
Extremely Happy
This is a great product. Very compact but still provides what you need from it. I have actually jumped the vehicle more than once before having to charge it. It's a life saver to have in my car and know I won't be stranded. It's nice to be able to solve the problem right away. Does a fantastic job. Got this on sale at a great price.
J**T
Easy, Fast and Reliable
This review is for: NOCO Boost Plus, Model GB40 ============================ Short Version: I love this device and will likely never go without one again. It's a reliable and easy to use jump-starter, power bank and 7-position flashlight all-in-one, so what's not to like? I would recommend this NOCO device to anyone who owns a car. Consider it one-payment dead battery insurance with no wait, delays, or co-pay. ========================== • MY EXPERIENCE: My car developed a short in the door lock mechanism that drained the battery in less than 24 hours. Between the inept Ford dealership and the excellent local private automotive shop, It took 5 weeks and several visits to trace and repair the short. In the meantime I needed a reliable way to jump-start my car on a nearly daily basis. After searching Amazon, I purchased this jump starter based on the overwhelmingly positive reviews. And it has really served me well. It was used multiple times between shop visits and has been used multiple times since then. It has been reliable when needed, jump-starting cars with ease. The Li-Ion battery holds a charge for a very long time. After sitting on the shelf for over 6 months it still appeared to hold nearly a full charge. And then only took about an hour to top it up. I've carried jumper cables in my trunk my whole life, but when a jump is needed you can never be certain someone will come along who's willing and has the time to assist you. This powerful jump-starter eliminates that uncertainty. It's also very easy to use and makes a great present for friends and family - even those who aren't very mechanically inclined. • USEFUL LIFE & RECHARGE FREQUENCY - From NOCO, when answering a question here on Amazon: 'The Boost should last several years with regular use and proper storage. To help extend the life of the internal battery, use and recharge at least every couple of months.' - Not everyone will have a need to use this device as a power bank, so the battery won't get properly charged and discharged as described. In that case my suggestion is to use the NOCO every month or two to charge your cell phone. - From NOCO, in the Important Safety Warnings section of the instruction manual: 'To ensure maximum battery life, avoid charging your product for more than a week at a time, as overcharging may shorten battery life. Over time, an unused product will discharge and must be recharged before use. Disconnect the product from power sources when not in use.' • FEATURES: - Powered by a (non-replaceable) 12v 1000A Li-Ion battery. - Battery Connection Safety -- 'Safely connect to any 12-volt vehicle with our mistake-proof design featuring spark-proof technology and reverse polarity protection' - Has a Manual Override, which allows the unit to jump start a battery that is discharged below 2v. - Also serves as a USB connected Power Bank - Includes a 7-position torch light • CONNECTIONS: - 12v Out - The included battery clamps are to be connected here. This is a unique connector so you cannot connect the jumper cables stored in your trunk directly to this device. - USB In - The included cable, or any USB to micro USB charging cable can be plugged in here in order to charge the NOCO jump-starter battery. The power rating of the charger device will dictate how fast the NOCO will come to a full charge. - USB Out - Let's you use the NOCO as a Power Bank (5V, 2.1A), using a standard USB cable. • RECHARGING - Time needed to charge the NOCO - The following comes from the User Manual. Assuming a nearly or fully discharged NOCO GB40: Charger (source) Rating = Full Recharge Time. [.5A = 12h], [1A = 6h], [2A = 3h] • EASY TO USE: 1. Plug the clamps into the NOCO. 2. Connect the clamps to the car battery. 3. Press the NOCO power button to turn it on. 4. Start the car. 5. Press the NOCO power button to turn it off. 6. Disconnect the device from the car battery.
M**N
Lives up to the hype, top notch quality starter pack.
Great pack, has saved my a$$ a number of times, from starting my suv to starting others without having to carry large cables that get tangled. Has enough power to start high compression gas V8, haven't tried with a diesel, suspect it may start one, but would probably opt for a more powerful model from same brand. I worked at a garage where we had to start cars often, several other brands failed to start cars or did so only for short period before being a brick where this is dependable and long lasting. You do need to charge it, but it actually holds a charge and is useful, best brand I have used and the light is a nice feature.
V**A
Works as promised!
This worked perfectly for jump starting my hybrid which was dead. I took off one star because I didn’t find the directions clear and had to watch a few you tube videos to figure it out. After that it was easy as pie! Great device! I’m thinking of getting their trickle charger for the next time the car has to sit and not be used for a while. Great product!
S**E
You will love this thing. Just buy it if you have a regular car.
When I borrowed an old never used car my dad gave me one of these to jump the car, it never failed me. I have a sports car I only use and got tired of jumping it with my other car. I went straight for one of these but wasn’t sure if the 1000A would start a 3.5 v6 as even jumping it with my car would take awhile. When it got delivered, it had 3 bars of battery and started the car up no problem at all. It’s a little expensive compared to some of the cheaper options but with this one I know I can rely on it and won’t be stranded. Well worth the price. It’s the size of my for arm, with simple design and bright led lighting, it’s rugged so you know it could handle abuse. Usb-c charging and provided with cable. I seen someone give a 1 star because of this. It’s 2026 what do you expect? Supports fast charging. Nicely packaged and come’s with a nice little bag to place everything in. Only thing I don’t like is it uses usb outlet to charge things but I didn’t buy this to charge a phone so don’t really care.
J**G
Väldigt robust, smidig och förtroendeingivande pryl. Testat 1 gång, bilen startade innan jag ens hunnit säga Engelbert Humperdinck.
E**R
Bu işi yapan cihazlar arasında kesinlikle en kalitelisi ,bu cihazlarda mühim olan kullanılan bataryanın kalitesi noco da kaliteli batarya kullanıldığını biliyorum. Defalarca aracımda kullandım ve hala şarjı yüzde yüz
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.
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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