MAXMADE® Car Jump Starter 11000mAh Power Bank Made of 400A-Peak-Current Battery Up to 15 Ignition Times at Full Charge Perfect for Starting Your Car in Emergency with Ultra-bright LED Flashlight and Dual USB Output Also Charge for Apple and Android Smartphones, Tablets, and Other USB-charged Devices (White)

Well, if you're like me, the reason you're looking at this product is because you would like to have something that can actually start your car, not just charge your phone. TL;DR version: as long as your vehicle doesn't have a large engine/diesel, it'll start it.I work for AAA, and while they provide jump packs for us, often a Jump-N-Carry 660 or something similar, sometimes they would end up being a little low on juice. So I figured I would buy a jump pack for myself. I did some looking around and at the time this maxmade jump starter was being sold for $55, which I'm assuming was an introductory rate. So I bought one to see how it would do.So far it's done quite well. The largest engine I can remember starting was a 3.8L that was in a dodge caravan that had a drained battery. So for occasionally starting most vehicles, this will do just fine. Though starting vehicles in the winter is more difficult I imagine it'll still be able to start the same ones it can now, though I'll try to update this review during the winter.I've only had a couple issues starting vehicles, and I may not have had the best connection the one time. The other time was when I had already started a few cars in a row with just a minute or so downtime between each, and then it wouldn't start something. Though this could have been due to the battery, or just the fact of using it harder than it was designed to be.One thing to note, there are a lot of videos around with products like this starting a vehicle when they have disconnected the battery to prove that it can start it. While impressive, it is actually more difficult to start a vehicle with a completely drained battery than it is if the battery is not even hooked up. Take this scenario: you have a vehicle that the lights were left on overnight so the battery has no power in it at all, when you connect a jump pack it will in essence start charging the dead battery. The power going into the battery is not available to start the car(power the starter). If you don't disconnect the battery, you may have to wait 30 seconds or a minute while the dead battery gets to a point where it's not sucking the cranking power of your jump pack. This is not a problem that only happens with these small ones, the guys I work with and I have seen this happen when using some of the larger stuff, where our jump pack was completely capable of starting the vehicle, but the condition of the battery was such that it wouldn't start it immediately.So at the time of writing this review, it looks like it is no longer in stock via amazon and only sold by the company for $100. It's still a fairly good deal at that price. My only concern for this jump pack, and another one like it that I've bought by Matco, is how well it will hold up over time. The batteries in the JNC style jump packs last us approximately 2 years, sometimes less. So if one of these can last about that long, I'll be completely happy. This is AAA style work though, for an average person that only uses it a few times a year for themselves and random folks they meet that need help, I imagine it'll last quite a bit longer.Edit Dec 16, 2014.Alright, well here's an update. This easily starts my car (04 Hyundai Sonata, 2.7L V6). And most other vehicles that are similar. At least during the summer. We're finally getting into winter so we'll see what happens. I haven't kept track of what all has started, but a couple would be a 2010 Civic and an 09 Rav4.Some things I would not expect it to work with, a BMW, especially if the battery is drained. I don't know what exactly they're doing with their vehicles, I don't know if it's all the electronics, their engines have a ridiculous compression or what, but BMW's are very difficult to start. Volkswagon TDI's are likely going to be a no-go with these as well.So here's a way to kill one of these, or seemingly kill it. One of the other guys was trying to jump start an F150 I believe it was with a completely drained battery (no lights would even come on in the vehicle). He hooked it up and tried starting it a couple of times and we believe in the process killed the little jump pack. So as a general rule, if all that happens when you hook it up is some clicking, don't keep trying to start the vehicle!

I purchased it at Amazon in August 2014. I fully charged it and put it in my car. On 12/1/2014, I got a chance to use it to jump my friend's car, then I found the battery was ZERO. So I fully charged it again, during the time, my friend jumped his car by other means. After one month, on 1/1/2015, I checked the power bank again to see how much power it had, the battery was ZERO again!!!! I believe it is useless since it can not hold any power. Will contact Amazon about it.Don't buy, don't waste your money.

I've only used this on a motorcycle so far, but it did a great job there. Great price. I had a Powerall before this which I thought was an amazing tool but I broke it (head up my.......and connected the cables backwards)I replaced it with this one as the other review were good and the price was a lot lower. If you've ever had to beg a stranger for a jump or wait forever for AAA to arrive this is a MUST have for the price and size.Update about 16mons after purchase: does not hold a charge for more than about 2 weeks. I only use this for emergencies so I don't have it out all of the time. I did check it just in case and discovered that it had no lights laminating on the indicator so I charged it up and noted that it will no longer hold a charge for any length of time. So I pulled 3 stars off; I realize that batteries have a life span but I would like longer than this.

Worked great to jump two cars and comes in handy if you need to charge your phone on the go. When I tried to use it a third time the plastic positive clamp just snapped making it useless for anything but charging my cell phone. Product itself works but the clamps are a bit cheap.Update 2/25/15The company has agreed to replace the broken item showing they actively back the product. I am hoping the plastic holds out longer this time because it is a great compact product that can really come in handy when it is working.