Stanley 500 Watt Power Inverter

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  • 500 watts of continuous power
  • Battery clamps
  • DC plug
  • About this item

    Important Made in USA Origin Disclaimer: For certain items sold by Walmart on Walmart.com, the displayed country of origin information may not be accurate or consistent with manufacturer information. For updated, accurate country of origin data, it is recommended that you rely on product packaging or manufacturer information.

    The Stanley 500 Watt Power Inverter can be plugged into the power port of your vehicle for charging three devices simultaneously while youre on the road. It can also be directly plugged into the DC port of your vehicle with the included DC plug. This 500 Watt car power inverter provides 500 watts of continuous power in a compact form. It comes with two 110 power outlets that can run two laptops at the same time. It also features a USB power outlet that helps charge your digital camera, iPod, and other electronic devices that require a USB cable. The Stanley Power Inverter has an overload protection that automatically shuts down when the load exceeds the limit. This 500 Watt car inverter also includes a battery alarm, fault interrupter, and short circuit protection for added safety.

    About this item

    Important Made in USA Origin Disclaimer: For certain items sold by Walmart on Walmart.com, the displayed country of origin information may not be accurate or consistent with manufacturer information. For updated, accurate country of origin data, it is recommended that you rely on product packaging or manufacturer information.

    The Stanley 500 Watt Power Inverter can be plugged into the power port of your vehicle for charging three devices simultaneously while youre on the road. It can also be directly plugged into the DC port of your vehicle with the included DC plug. This 500 Watt car power inverter provides 500 watts of continuous power in a compact form. It comes with two 110 power outlets that can run two laptops at the same time. It also features a USB power outlet that helps charge your digital camera, iPod, and other electronic devices that require a USB cable. The Stanley Power Inverter has an overload protection that automatically shuts down when the load exceeds the limit. This 500 Watt car inverter also includes a battery alarm, fault interrupter, and short circuit protection for added safety.

    Stanley 500 Watt Power Inverter:

  • 500 watts of continuous power
  • (2) 110 power outlets and a USB outlet
  • 4 position mounting grommets
  • Includes battery clamps and DC plug
  • Specifications

    Color: Multicolor
    Condition: New
    Manufacturer Part Number: PC509
    Model: PC509
    Brand: Stanley
    Assembled Product Dimensions (L x W x H): 9.75 x 5.00 x 2.25 Inches
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    Best seller ranking:

    Customer Reviews

    Customer Reviews | 11 reviews | 3.4 out of 5

    3.5 stars

    11 reviews | 3.4 out of 5

    3.5 stars

    11 reviews | 3.4 out of 5

    64%
    Would recommend to a friend
    5 stars
    4
    4 stars
    2
    3 stars
    2
    2 stars
    0
    1 stars
    3
    1-5 of 9 total reviews
    64%
    Would recommend to a friend

    Age

    Gender

    Failed right away, wouldnt power anything over 60w
    12/20/2011

    Customer review by jim20j

    1.0 stars 12/20/2011 by jim20j
    by jim20j

    had a laptop power adapter (65w) lcd monitor (40w) external hard drive (5w) iphone charger (5w) and after 2 hours into our road trip it overheated. After that it would no longer be able to provide power to the laptop. only the external hard drive, monitor and iphone charger. I let it cool off for 20 min and no change. I wired this with 6' of 10awg directly to the battery. I had to stop and purchase another from WM, and got a schumacher 410w from for nearly the same price and it lasted the entire 18 hour trip powered on. this product may have been a defectd, but not worth the the pain if you want reliability.

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    jim20j
    chicago
    Would recommend to a friend? No
    Age:35 - 44
    Ownership:1 week or less
    Gender:Male
    Usage:Every day
    Good and bad
    12/22/2011

    Customer review by gorkie

    4.0 stars 12/22/2011 by gorkie
    by gorkie

    Worked for about 2 hours and then the cooling fan stopped working and it kept overheating. Had purchased on line so I took it back to the store and they did not have a 500 watt in the store so I was given a refund. I'm sure another one would have worked just fine if they would have had it. Price was good and while it worked it did a good job.

    Was this review helpful? (10) (3)
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    gorkie
    Kulm, ND
    Would recommend to a friend? Yes
    Age:55 - 64
    Ownership:1 week or less
    Gender:Male
    Usage:Every few days
    Deliverable Power output is misleading
    5/6/2015

    Customer review by Mojorider15

    3.0 stars 5/6/2015 by Mojorider15
    by Mojorider15

    Whilst rated for up to 500 watts the device does not have the electrical terminals of the correct size for the duty advertised. For example for this device to truly deliver 500 watts it would need to draw a very sizable current from a 12 volt supply, which means you will require cable terminations which simply will not fit the small and fragile terminals on the unit. It's even supplied with a set of cables that I would estimate are only capable of supplying less than half of the required current at the units maximum rated outPut. So review your intended use for this unit and if you don't really need 500W then select something more appropriatw and if do do need 500w then choose a unit that is truly intended for such service

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    Mojorider15
    Would recommend to a friend? No
    Exactly what it says and it performs!
    2/22/2011

    Customer review by Rainseeker

    5.0 stars 2/22/2011 by Rainseeker
    by Rainseeker

    Easy to use and works great. Has made working on a site easier.

    Was this review helpful? (8) (4)
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    Rainseeker
    DeFuniak Springs, FL
    Would recommend to a friend? Yes
    Age:45 - 54
    Ownership:2 - 7 weeks
    Gender:Male
    Usage:Once per week
    Head line misleading
    6/8/2013

    Customer review by Jamesincypress

    1.0 stars 6/8/2013 by Jamesincypress
    by Jamesincypress
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.

    It is a 100 watt power invert inside the car. From the battery it is a 500 watt power inverter.

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    Jamesincypress
    Cypress Texas
    Would recommend to a friend? No
    Age:25 - 34
    Ownership:1 week or less
    Gender:Male
    Usage:Never
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.
    1-5 of 9 total reviews See all
    1-5 of 9 reviews

    Customer Reviews | 11 reviews | 3.4 out of 5

    Customer Reviews

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    Customer Q&A

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    Questions & Answers 11 questions
    1-3 of 11 questions

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    Back
    Also let me know whether it has in built surge protector ?
    by an anonymous customer 9/13/2011
    3 answers
    • A. The Stanley inverter does NOT come with a battery. Generally, you have to supply your own battery when using an inverter. They are designed to plug into the cigarette lighter port inside your car or to be connected directly to the battery with clips (like little jumper cables). Be aware that most cigarette lighter ports have a fuse that limits their output (so you don't melt the wires under your dashboard). So if you plug anything big (like a drill or vacuum) into the inverter, it will need to be connected directly to the battery. How many hours it will run your computer depends ENTIRELY on the capacity of the battery you connect it to. Most laptops use less than 90 watts, so converting that to amps drawn from a 12 volts source yields 8.5 amps. Your car battery is probably rated at around 45 amp-hours, so it would run your laptop for about 5 hours before being completely depleted. However, you cannot pull 8.5 amps from a car battery continuously for more than a few minutes without damaging it, so to power your laptop for a few hours, you should connect 3 car batteries in parallel.
      by johncroc10/19/2015
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    • A. It does not come with a battery. Comes with lighter attachment and aligator clip attachment.
      by gorkie12/23/2011
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    • A. With inverters, the battery is your car's battery - often through a high amperage connection like your cigarette charger. Being powered by a battery, which supplies power at a fixed rate that only declines, there is no need for a surge protector as such. An alternator cannot fail in such a way that it produces a significant increase in voltage - especially that the connected battery won't absorb and it's not likely the positive wire would be hit by lightning.) This particular inverter prevents more than 500 watts to ever flow through it even instantly, or anything over a little more than half of that for a long period of time (a couple to ten seconds), so it's rated at half, 250W, continuously. Should a bigger load than that be placed on it, it shuts down - so that is a type of surge protector on the output side. These inverters produce a type of "square wave" output, unlike a smooth curved "sine wave" as produced by a mechanical electric generator like we get our house current from, but it works fine for nearly any device. Peak amperage 120V output is a little under (maybe 10-15%) 500W/120V, or about 4A, and continuous about 2A. From your car, which runs 11-14.8V DC under various engine speeds, battery condition & electrical usage, it will draw a little over (again, maybe 10-15%) of 500W/12V, or 45A, and continuous about 23A. These inverters are fused with a 30A fuse and so will not support supplying more than a few seconds of that peak power. Capacitors inside the inverter also allows it to store enough power for a few seconds as well. A much larger inverter will use bigger connections with higher amperage breakers direct to the battery. If your vehicle has under 30A circuits to your cigarette lighter, or if the alternator is putting out low voltage, or a weak battery isn't storing enough power, or worse a bad battery has a dead cell and only stores 10V, more amperage will be drawn to supply the inverter and blow the fuse easier. A good system running at 13.7 V or more will cause less amperage to be drawn to supply the inverter. Loose connections, especially in a loose or dirty cigarette lighter plug, can also cause an intermittent low supply voltage program - and are the worst common problem.
      by FriarTuck617/25/2015
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    by geoclark 9/14/2011
    2 answers
    • A. Amps is a measure of current (flow of electricity) and watts is a measure of the energy contained in that flow. They are related by a formula: amps x volts = watts. This formula can also be rearranged (using algebra) into: watts / volts = amps. Inverters "use" amps based on what you plug into them. If your device uses 3 amps when plugged into the wall, then it uses 3 amps x 120 volts = 360 watts. When you plug it into the inverter it will still use 360 watts, but since the inverter is powered by a 12 volt battery, it will pull 360 watts / 12 volts = 30 amps from the battery.
      by johncroc6/13/2012
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    • A. Always check the spec sheet of the exact model for special recommendations for that model on that production version. I posted a longer answer below, but this inverter will pull about 23A at maximum continuous (250W). At peak, especially with a weaker car battery, it will momentarily exceed the 30A fuse it is fused with, as will any other 500W peak model. Always use a standard types and not fast-reacting fuses (the ones with the fine "squiggely" wires in old glass tube designs) for this reason. Short term storage inside the unit allows it to briefly supply that 500W without blowing the fuse - and the unit will shut down on its own before popping the standard 30A fuse. Because of this effect, it's especially important to use exactly the type & rating fuse recommended. Obviously one too high risks your car's wiring, but in this case a fuse even a little smaller could pop all the time.
      by FriarTuck6112/21/2015
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    Product warranty:  Year Years See details

    Warranty Information: One year limited warranty.Manufacturer warrants this product for one year against any defects in material or workmanship. This warranty does not apply to accessories. This warranty gives you specific legal rights and you may have other rights which may vary from state to state or province to province.
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