NOCO Boost GB20 500A UltraSafe Jump Starter, 12V Lithium Battery Booster

I bought this to avoid having to ask for a jump when my battery died. Great investment! I can use it to charge my devices when not using it for my vehicle, it portable so I can take it with me, very durable, easy connectivity, quick charge and includes jumper cables. As a single Female, I highly recommend it for the Ladies!

These products are always fairly expensive, but they are worth the purchase. It is a lot better than using jumper, cables, and a lot safer. It is also easier, not having to rely on another vehicle and they work as they should as far as jumping a vehicle and also charge his phones and electronics.

Must have for just about any driver any age. Durable, affordable and easy to use. So much better than the scary days of jumper cables. Bought one for each of my adult sons- nice Christmas or bday gift.

I have bought three of the GB20 devices over the last seven years or so. All have been helpful, usually for other people and occasionally for myself. One a friend borrowed and lost. The other two continue to serve well. While I recharge the devices once a quarter, they still have plenty of charge before I do. I would buy another, but in my Alfa Romeo 164 the positive post and the ground point are too far apart for the supplied cables to reach. There is no option for longer cables.

Longevity remains to be seen as I've only had this about a week, but so far its been stellar. My FJR1300 was having some battery issues so I wanted something compact and durable I could keep in the panniers. Picked this up, and it's been working great. Charged quickly and easily, started up my bike multiple times without needing a recharge, and just feels well made. The flashlight has also been useful, and its nice to have the flashing if I ever get stranded roadside. The only two minor gripes I have that bump it to 4 is that the carry bag really needs a drawstring toggle to keep it closed, a few times the jump pack had slid out in transit, and secondly though the flashlight is very useful I wish it didnt look like headlights 100yds away, from 10yds away. Especially as a biker, I dont want to give the impression that I'm both a car and way further away than I really am if I'm using the light on the roadside. If neither of those bother you, then I'd recommend it. I also had reached out to NOCO about some of their other products and they were responsive and helpful, so it's good to know there's actual company backing behind the product, its not just repackaged dropshipped garbage.

Purchased in 2021 and still going strong. Bought a higher version in 2025 for a family member. Pros: Holds a charge for a long time, has been used on several occasions, and doesn't require immediate recharging. The included clamps are compact and rugged. It starts engines far bigger than recommended, though slowly (powerful enough for small engines). The safety features and ease of use are appreciated. Cons: The charging speed for phones is slow. The included bag is flimsy. I'm a proud owner for years, I bought the next model up to start larger engines. I've helped other drivers with off-brand jump starters that are bulkier on several occasions. This relatively compact model has surprised me firing up diesel engines larger than it's rated. A must-have for every driver, and cheap enough to justify.

Awesome everyone should have one!!!

I've jump-started my car maybe 6 - 8 times on a single charge with this battery pack, which I leave in my car full-time, all year long. I have a little-used car and the internal battery runs down so far nothing works at all. I need to use the "override" feature nearly every time (which is not well-documented, I have to keep going back to their web site to remind myself how it works) but once the pack is geared up and ready to go, my car alarm starts wailing and I can start it on the first try. No chugging or waiting for anything to "get more power" or whatever. I was initially worried about which exact model to purchase (NOCO makes a variety of battery packs for different loads; I had borrowed a friend's much more powerful GB150 which is 3000A versus this 500A pack), but this one works perfectly fine for my manual 4-cylinder car. We'll see if the "20 jump-starts per charge" is real, but even getting half that would be impressive. The connector wires couldn't be simpler: there is only one way to connect to the battery pack, you match red-to-red and black-to-black on the battery and go for it. The jaws are not as substantial as a regular set of jumper cables, but they seem both sturdy and appropriately "springy". I don't anticipate having to replace them any time soon. Fortunately, NOCO actually sells replacement wires, though they are fairly expensive relative to the cost of the kit (~$80 for the kit, ~$35 for replacement wires). I'd love to have more instructions printed on the device itself, especially for the "override" which unfortunately for me I have to use often.

C'est un appareil vraiment excellent et qui rend bien service. Pouvant être chargé par usb, avec une autonomie de 10 démarrages, je recommande vivement.

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Purchased for personal use but ended up using it for work, never thought it would be as good at it actually is. outstanding little jump pack small and compact light weight Been using it for 18 days approximately jump starting various sized batteries ranging from 420 amp up to 760 amp no problems at all. Have to charge after approx 5 jump starts highly recommended for the price.

Fantastic bit of kit. Got it for a quad and ride on lawnmower that have dodgy batteries that don't charge too good. Works perfectly.

High quality product!