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Stanley 500 Amp Jumper
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Stanley 500 Amp Jumper

List Price: $99.99
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The Stanley 500-Amp Battery Jump Starter with Compressor offers a convenient, portable way to jump-start your battery without the need of another vehicle. Simply attach the clamps and if connected improperly the alarm will sound, alerting you to switch the clamps before turning on the unit. With enough power to jump-start your car, truck, motorcycle, boat, RV or tractor, the Stanley 500-Amp Battery Jump Starter with Compressor is ideal for every day use or roadside emergencies.


1000 Peak Battery Amps / 500 Amp Instant Starting Power

Includes a 120 PSI air compressor, DC & USB charging plugs and a high powered LED light that rotates 270 degrees

Consists of reverse polarity alarm for safety along with a top-mounted rubber molded handle for easy grip

Heavy duty metal clamps and Number 6 AWG cables

Contains power/charge indicator and audible & visual reverse polarity alarm

Item is Hazmat and non-returnable

Product Details:
Product Length: 11.25 inches
Product Width: 8.0 inches
Product Height: 13.5 inches
Product Weight: 18.0 pounds
Package Length: 17.3 inches
Package Width: 12.2 inches
Package Height: 11.7 inches
Package Weight: 19.4 pounds
Average Customer Rating: based on 462 reviews
Customer Reviews:
Average Customer Review: 4.0 ( 462 customer reviews )
Write an online review and share your thoughts with other customers.

Most Helpful Customer Reviews

166 of 171 found the following review helpful:

5So nice I bought it twice! :)Apr 05, 2011
By J. Haggard
I drive a honda ridgeline pickup truck and my wife drive a honda civic. I've been looking for a decent jumpstarter that would be powerful enough for both of our vehicles. Rather then having 2 various models it just seemed easier to get two identical units. After reading reviews on several various jump-starters I opted for this model.

Now the most negative thing I could find about this thing was it lacked a flat charger so you couldn't leave it plugged in. For me that's not even a factor, after all I bought this to charge it and then put it in the trunk of my wifes car and in the cargo area of my truck. I don't intend on leaving this plugged in. So if you plan on using this HOW IT IS DESIGNED then you too don't even need to worry about the lack of a float charger.

That being said, the unit itself is a bit heavy, imagine picking up really big battery, that's essentially what this is. It has some weight to it.

The jumpstarter itself also features an interesting little light that pivots as well as an air compressor. I've heard/read back reviews on the air compressor, for me it's not why I bought it. But initial checks it looks like it works fine and even has somewhere to store the air hose which is really nice.

The one negative I have on this thing is the power switch for the air compressor is on the back and is not protected. In other words it could in theory be flipped on and drain the battery. So when you need to jump your car the starter would be dead. I wish they put a cover or moved the switch but honestly it would take a perfect mistake for that to get turned on so it's really not that critical. To prevent this from potentially happening I actually went down to Target and bought 2 milk crates,one for me and one for my wife. I put a jump starter, first aid kit, oil, etc in the crate so it's essentially the roadside emergency crate and also protects the jumpstarter from getting knocked around and/or turned on.

Overall I spent $140 total on 2 of these and I'm really happy with the quality. They charge overnight easily, the indicator lights show you the charge remaining on the battery and it has power ports for 12volt and USB which is an added bonus.

If you need a jumpstarter I would definitely consider this one.

147 of 152 found the following review helpful:

5Worth its weight in goldApr 17, 2010
By E. Hu
...and that's saying a lot, since this thing is so heavy.
I haven't used all the features, but I recently had a electrical problem in my car. The alternator was draining my battery, and I had to unplug it every time. I got the jump starter after my car was fixed, but then I forgot to turn my lights off two days later. This thing jumped my car just fine.
I also have a lot of problems with my tires in the winter, air slowly leaks out of one of my tires. This will come in handy then, as well. It'll save me a couple bucks going to the gas station to fill up air.

Pros: It works. Lots of features, including a cigarette lighter charger, USB charger, and air compressor for your tires. Easy to carry with the handle up top.

Cons: Heavy, it takes a long time to charge (15-19 hrs), and you'll need an extension cord to charge it.

509 of 552 found the following review helpful:

3Lacks an Automatic Float Charging SystemFeb 22, 2010
By Camera Shy
This unit should provide the capacity needed to jump start most cars. However, there are a few things to note:

1. This unit does not have an automatic float charging system. This means you can't just leave it plugged in & expect it to maintain a full charge. Instead, you must periodically unplug it and replug it in (at least every few months). If you forget, you will not only not have a charged unit when you need it, but, the battery can become damaged as well if left to fully discharge. Chargers costing as little as $20 have this feature; There's no reason to exclude it on a unit like this.

2. This unit does not include a power cord. Instead, you will need to use an extension cord; it needs to be a single dongle version because of the design of the unit.

3. This unit does not include a storage compartment. Not a big deal, but, if you have some accessories you want to tote (like a power cord or inflation needle), you won't have a convenient place to store it.

I've also had two PowerStation units. One died within a year and the other still works (I think). Time will tell how the Stanley stacks up.

81 of 84 found the following review helpful:

5Reliable; great productJul 11, 2011
By J. Doerr "Jack of all trades, master of none."
The basic function of one of these things is pretty simple: take a car with a dead battery and give it enough of a boost in juice to get the engine to turn over. They certainly beat trying to find and then position someone to get a jump between cars.

That said, there are several different "flavors" of jump starters. I've had the smaller 200 amp versions and found myself stranded when it didn't have enough oomph to start my car from a fully dead battery. I don't drive a tank or a pick-up with a Hemi, so it's not like I needed a lot of juice. The little one just didn't have the power. The person that was kind enough to brave a torrential downpour and give me a jump had a 500 amp that worked like a charm.

This thing is a life saver. Off of one charge, it's jump started over five cars and one was an Avalanche with a stone dead battery. The battery has held a charge for over a year, even being in my trunk the whole time. On top of being beefy enough to start every vehicle I've attached it to, there are little bells and whistles that add to the overall wow. There's an attached LED mini-spotlight comparable to a medium mag-lite, an air compressor and - get this - a USB port AND a socket similar to your car's cigarette lighter in case you want to power/charge a gadget for hours at a time without being near a computer. This thing has some heft but I didn't find it obnoxiously heavy. It certainly weighed less than a regular car battery!

1. Portable
2. Powerful
3. Simple to use
4. Easy to understand charge meter
5. Attached LED light for use at night
6. Includes a USB port
7. Includes a cigarette lighter socket (and cord) for both powering gadgets and slow trickle charging your car's battery.

1. No charge cord. You have to use a 3-prong extension cord to recharge this.

After using it for several years, I bought one for both parents and a good friend and they, too, love it. If you're on the fence about buying one of these, I'll make it easy: BUY IT. You won't regret it.

32 of 35 found the following review helpful:

4Great portable power unit - charging tipsJul 11, 2013
By Ionic
I use my Stanley J5C09 mainly as a portable dc source rather than a dedicated jumpstarter / tire inflator and am very happy with it.

Inside the unit is a wall-wart transformer that feeds a charging circuit. It is basically a float-charger at 13.8 volts. I note that it is on the CEC database of energy efficient chargers, so I have a feeling it will be around / available for quite a while. I prefer having the charger inside the unit, since I'm prone to losing external wall warts, and won't be tempted to use a replacement with the wrong voltages. A simple 3 foot extension cord works perfectly. The two ac-prongs on the back are from the internal wall-wart itself.

Actually, once the battery charge reaches 13.8 volts, and the green led starts to blink, every 3 seconds or so it will send a momentary pulse to raise the battery voltage to 13.87 volts. When the battery drops to about 13.75 volts, the pulse will happen again and the process repeats. This is far more efficient than the usual old-fashioned wall wart charger, and I have no qualms about accidentally leaving it charging for a long time - although for safety, no charger should be left unattended. Voltages were monitored with a Fluke 87V multimeter.

Mine was received with tight plastic wrap around the unit which assured me that nobody used the jumpstarter temporarily and depleted the battery before shipping.

The battery is an 18ah sealed AGM, typical of the type used with ups units. While agm batteries have low self-discharge, I made sure that it got a long initial float charge after purchase of about 36 hours or more to make sure I was starting out on the right foot with a fully charged battery since I had no idea of how long the unit was on the shelf. When the 3rd charging led just starts to blink green, that only means it reached 13.8 volts. To fully charge at float voltages, I like to keep it charging for a few more hours. The two units I own never actually go solid green - just blinking.

I also make sure I don't run the battery down flat. I try not to let it ever get down to only 1 red led of charge capacity left before recharging, and recharge as often as possible. Just like a car battery, this one will sulfate and lose capacity permanently if left in a discharged condition for a long time. My personal limit with these is 1 to 2 days tops before recharging in the worst case scenario.

My unit seemed fresh enough to pass a 50% DOD discharge test on a West-Mountain CBA-IV programmable dummy load to indicate it was indeed 18ah capacity.

If you don't want to leave it pulse-float-charging constantly, just be sure to top it off overnight every month, after each major use, and especially sooner like every 2 weeks if you keep it in a hot car trunk. Despite an agm battery's low self-discharge characteristic, high heat levels will discharge it much quicker. Top it off frequently if kept in a hot vehicle.

Make sure you keep the usb port disabled when not using it. I actually burned up a Diehard jumpstarter by pulling too much current from their usb port, which disabled the logic board and rendered their charger useless. Since I don't want to chance it with the Stanley, I use a mobile high-power usb adapter into the cigarette jack instead to charge high-current usb devices. Just make sure you pull that too when not using it.

Inside the unit everything is nice and clean with good construction. No rats-nest of wires here! The boards seemed to be good quality, and the wave-soldering / manual soldering looked good.

Using the dc-dc cigarette lighter cable to the car's own cigarette jack for recharge is something I try to avoid unless in a total emergency. HEED the warning that if you do this, do not do it for very long since there is no regulation.

For my uses, I would have preferred not having the inflator model, but handy to have I guess. It is a great unit, and if you treat the battery right, it should work well. But like all batteries, they will naturally fail of old age, so I'm hoping to get about 4 years of use / storage out of it.

It was also quiet across the 2-30 mhz radio spectrum - although when I hunted for the pulses I could find them if I dug down into the noise knowing what I was looking for, but overall I would say most won't notice it.

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