NOCOBoost Sport GB20 500A UltraSafe Car Battery Jump Starter, 12V Battery Pack, Battery Booster, Jump Box, Portable Charger and Jumper Cables for 4.0L Gasoline Engines

I originally bought this to carry on my ATV, after witnessing a fellow rider suffer a dead battery that resulted in having to tow his ATV out of the woods. Since the purchase, I've used it on several vehicles (my own and others), and it simply works great. Easy to hook up, easy to use, and stores well, holding a fully charge for months at a time, even in cold weather.

I bought this to start my 750cc motorcycle after it sat in the garage all winter. It is easy to use and it works well. It was a little tricky to get the cables to clamp onto the very small battery terminals but, after a couple of tries, the bike fired right up. I have a feeling I will be using this to start my riding lawn mower in a couple weeks.

Bought for a Christmas gift. Very compact, easy to use, light weight. Very good and handy to have in your vehicle

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.

I'm glad to report great results. I bought mine over a year ago and after charging it, its just been sitting through a hot Texas summer and fairly cold winter. My daughter left the dome light on over the weekend so when I tried to start up this morning I was met with fairly dead battery, starter wasn't even clicking. I've got a 1st Gen Sequoia with a 4.7L V8, I originally bought this battery for a Camry and was considering getting a larger model, but after today I'll stick with what I've got. After hooking it up, the engine cranked right up with no struggle at all. It did drain the Noco fairly significantly, I started at full charge and after I started the engine, it showed half battery, but I don't really find a problem with this though. I plugged it in when I got to work and it came back to full charge in a little over an hour. Overall, very impressed and would recommend.

Wonderful and light little unit. It just works, and works well.Only two downsides I see with this portable jump unit.1. It has a safety feature (good) that will prevent shorting if the terminal clips touch each other. However, the unit will not come "on" automatically (delivering power) unless it is connected to a 12V system. This can be overridden with a bypass button (good), but this information is not printed on the unit itself. At first, I thought it wasn't even working at all, then the manual clued me in to what was going on. I suspect this was done for the look of the unit, but considering it would be used only in the case of a vehicle emergency, I think that could be put on the jump starter itself.2. The included bag is a very thin fabric. It's probably tough enough, but I opted to purchase the optional hardshell case for it. In my opinion, considering the cost of the unit, this should have been included.Other than these two very minor complaints, I am VERY happy with this jump starter. Highly recommend!

I’ve had this for about 4 years and it’s a lifesaver. It’s compact and easy to use and as long as it’s kept charged it will work to jump your battery. It holds its charge well and is easy to recharge. Can also be used to recharge your devices.

Bought this on a whim since the price was good, I have an older that if you leave a light on you'll drain the battery. I've had to have AAA come 2 times since owning my car in 7 years, I figured if I do it again I can jump it myself. Thinking I'll never use it, I've now used it 3 times since buying it. Weather has gotten very cold and the battery is old now so this has been a life saver each time, worth the money and works well. Also the ability to use it as a power bank is a big plus. The hook up is idiot proof and safer to use then hooking up jumper cables, the chance of damaging two or one car has pretty much been eliminated.