Wagan EL2405 100-Watt Smart AC USB Inverter with DC Socket

• Designed to convert 12v DC to 120v AC power source
• Charges the electronics in the vehicle through the cigarette lighter socket
• Used to power a laptop, DVD player, MP3 player, cell phone, etc
• Enables to recharge cell phones and MP3 players that can be recharged from USB power
• Facilitates a auto-reset short-circuit protection, and low battery shutdown and overload protection

I bought this device for an 8 day car vacation trip. I specifically wanted to recharge and power my MacBook Pro, which comes with an 85 Watt power supply (my kids used the MBP in the car to watch videos). It was used continuously while we were driving, approximately 22 hours total during the 8 day trip. The device just basically worked, what more can I say? I also used the built in USB port to charge up my cell phone and iPod (only one device at a time).

According to the documentation, this device only outputs 90W sustained. This wasn't an issue for me, as I doubt the MBP was drawing anywhere near the 85W limit of the power supply. Compared to others reviewed at amazon.com, this device does not have a fan, so it operates silently. The last thing I needed was *more* noise in the car.. ;-)

The only negative I had is that the MBP plug was kinda loose in the AC outlet in the device, not sure if that's the fault of the MBP power adapter or this device. It was tight enough, so the plug did not fall out while the car was in motion.

I'm glad I bought this device.

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I bought this for a car that needed to charge both a USB and a conventionally powered device as well. The good: it did charge both devices and apparently did not damage either. The bad: it literally started BILLOWING SMOKE after just a few hours use and could have caused serious damage if not removed. It was actually hot to the touch when it was pulled from the car socket.

I would not recommend this product to anyone for any reason as not only is it a complete waste of the money, but from my experience, it is actually hazardous to life and property.

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I had this product for over a year and I never had any problems that the other people are talking about. For over a year, my radar detector was plugged into the circular DC input and my phone charger or notebook cord was plugged into the AC input. The black top that plugs into the cigarette lighter outlet of your car will occasionally come off, but it screws right back on. The only thing I've never tried was the USB input. What I like most about this DC to AC adapter is that you don't lose your circular input (cigarette lighter outlet) and you get an extra USB input as a bonus. Most adapters would have only 1 or 2 inputs. This one has 3. Today my car got broken into and someone stole it, so I'm buying me the same exact one. I don't want to risk buying something else when I know this one works...at least for my use.

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This Smart AC 100 usb has blown the fuses in my car TWICE, making all three of the outlets in my Trailblazer inoperable.

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We have used this item several times and have only had it for a short time. It is nice being able to plug in our GPS and plug in a phone charger at the same time. I am glad we purchased this item.